Statistics and Probability questions and answers in March 2023 — Page 8

donotuse chatgpt give perfect answer. 4. How do we test for perfect multicollinearity in a multiple regression model? Group of answer choices a. Check visually with a histogram. b. Check for predictor...
 . A phone manufacturer wants to ensure its battery lasts a long time. Determine the sample size needed to construct a 99% confidence interval with a margin of error equal to 3 hours of phone usage. ...
I am having trouble finding all three questions.   . WP NWPhyssessment Player UI Appli X Homework Help - Q&A from On x + https://education.wiley.com/was/ui/v2/assessment-player/index.html?launch...
You are testing the efficacy of an exercise-based weight loss intervention. A secondary aim of the study is to investigate whether the success of the intervention is affected by the level of dietary f...
You have $4,500 on a credit card that charges a 19% interest rate. If you want to pay off the credit card in 3 years, how much will you need to pay each month (assuming you don't charge anything new t...
 . Question 1 of 3 0 Points Fill in the blanks: Find the area of the shaded region under the standard normal curve: -1.33 0 N Area of the shaded region is. Question 2 of 3 0 Points Fill in the blanks...
 . 11) Denver Colorado claims that it has a significantly thinner population than the rest of the country (this is true I saw it in an add). If the average person in the U.S. has 23% body fat and the...
       . 4. You want to study Whether the level of education affects the level of anxiety. You select 20 undergraduate, 20 masters level, and 20 PhD level students and give them a standard test of...
Hi can you help me with this question( no software use) . om» ( . If you haven t won a prize for the past s1x Fr1day 8 what IS the probabllity you Wlll wm a prize on your ( ( . What is the probabili...
 . 11) Denver Colorado claims that it has a significantly thinner population than the rest of the country (this is true I saw it in an add). If the average person in the U.S. has 23% body fat and the...
A study rated various brands of peanut butter on how creamy they were. The study used 4 different brands, found a sample mean of 17, and a sample standard deviation of 1.   We wish to construct a 99%...
 . Which of the following is a proper set of hypotheses for a test about a single population proportion? O A. Ho: P = PO Ha: P < Po O B. Ho: Po = Pa Ha: Po < Pa C. Ho: P = PO Ha: P < Po D. H...
A local Vancouver health food store is gathering information about the income of their customers. They survey every customer and find that the average income of their customers is $50,000 / year with ...
1. In the study of the effectiveness of an insecticide against a certain insect, a large area of land was sprayed.  Later, the area was examined for live insects by randomly selecting 30 squares of o...
   . . Question 1 5 pts ) 1 0 Details Heaven buys a bag of cookies that contains 5 chocolate chip cookies, 8 peanut butter cookies, 4 sugar cookies and 6 oatmeal cookies. What is the probability tha...
The critical value for r s is obtained using which of the following   a) a negative correlation exists in the population   b) the total number of scores in the sample   c) df , which equals N -1, N...
Suppose you perform a two-tailed significance test on a correlation using 20 subjects using the Pearson's correlation coefficient. Your r obt turns out to be 0.88, which is a statistically significant...
Suppose you conduct an experiment with 26 subjects and your t obt turns out to be 0.52, which is not statistically significant with alpha=0.05. Which of the following is the correct way to report your...
Suppose you conduct an experiment with 27 subjects and your t obt turns out to be 3.62, which is statistically significant with alphaalpha=0.05. Which of the following is the correct way to report you...
The average annual income in the city of Springfield is normally distributed with mean $60,000. A random sample of 25 citizens from the Upper Beachwood neighbourhood (which is located in Springfield) ...
asap and neat handwritten or full farmulas typed answer no chatgpt answer. #7. Consider the following hypothesis test (a = 0.0475): Ho: H 221.85 Hail <21.85 N A sample of 36 provided a sample mean ...
 . A research center claims that at least 26% of adults in a certain country think that their taxes will be audited. In a random sample of 800 adults in that country in a recent year, 22% say they ar...
 . Consider the STATA output below, based on a 1991 paper by Jeffrey Grogger on whether more certain prison sentences are more of a deterrent than longer prison sentences. The dependent variable is t...
A developmental psychologist interested in the development of colour perception presented 4 one month-old infants with a pair of colour forms. One form had two colours and the other had one. If the in...
True/False Explain.  Re-scaling an dependent variable by dividing it by 1,000 will tend to decrease the slope coefficients on all variables, and therefore increase their p-value on the null that each...
Make a study of cooking a family dinner during the holidays. Pick a dish that is typically cooked weekly (Turkey). In this process, the Six Sigma methodology will be applied. Using Minitab, make a sur...
neat and correct not use chatgpt. 5. Suppose that Y has density function f (y) = Scy(1 -y)2, osys1 lo, Elsewhere a. Find the value of c that makes f (y) a probability density function. b. Find P (.6 &...
We randomly select 20 high school students in Irvine and Anaheim, respectively. To compare their mean math score, we will apply: Group of answer choices One sample t-test   Paired t-test   Chi-squar...
Go to: http://htmlpreview.github.io/?https://github.com/andrewpbray/oiLabs-base-R/blob/master/inf_for_numerical_data/inf_for_numerical_data.html   *R Lab required* (Do only 5 of the "On Your Own" Que...
A die is rolled 60 times, the number of 6 should be around______, give or take _____ (round up to the integer) or so. (Hint: the box model should be 0, 0, 0, 0, 0, 1, with SD=0.37). Group of answer ch...
Using the data given in the table below, answer the following questions. (Round your final answers to 3 decimal places.) Order Size and Shipping Cost (n = 12) Orders (X) Ship Cost (Y) 1, 077 4, 489 1,...
If you were collecting information about the blood types of a certain population, which measure of centrality would make the most sense to use when summarizing the data?        Mean, Median, Mo...
Suppose we have an i.i.d. sample Xi ∼ N(μ 1 , σ 1 2 ), i = 1, . . . , n, and another independent i.i.d. sample Yj ∼ N(μ 2 , σ 2 2 ), j = 1, . . . , m. The parameters μ k , σ k 2 =, k = 1, 2 ...
Suppose (X1, X2, X3) ∼ trinomial(n, (p1, p2, p3)) where n, the number of trials, is fixed and p1 + p2 + p3 = 1. Show that (X1 − X2)2/(X1 + X2) has an asymptotic  χ 1 2 ​ distribution under H0 ...
Let X1, X2, . . . , Xn be i.i.d. random variables from the Poisson(λ) distribution with λ > 0. (a) Assume a prior λ ∼ Gamma(α, β) where α, β > 0 are known hyper parameters. Derive the 9...
A union's executive conducted a survey of its members to determine what the membership felt were the important issues to be resolved during upcoming negotiations with management. The results indicate ...
 . Waiting times (in minutes) of customers in a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed b...
For each of the following, identify the exam score that should lead to the better grade. A score of X = 70 on an exam with u = 82 and o = 8, or a score of X = 60 on an exam with u = 72 and o = 12? X =...
A used car dealer says that the mean price of a 2015 BMW-X5 is $68,000. You suspect this claim is incorrect and find that a random sample of 45 similar vehicles has a mean price of $62,550 and a stand...
The article  Statistics Anxiety and the Role of Self-Perceptions  addresses the concept of statistics anxiety. The author describes seven dimensions of self-perception and six dimensions of statist...
 . 1. Continue the Zagat example with data Zagat_Houston.jmp. (a) A Houston tourist guidebook states that "meals in Houston are not as expensive as some people expect; in fact, the average dinne...
Directions:  For questions 2 through 4, download the Excel fie in Canvas titled "Cholesterol Data", which contains the concentrations of cholesterol in people at the ages of 20-44 years (sample size ...
Please explain this question step by step. (1 point) Randomly selected 100 student cars have ages with a mean of 7.5 years and a standard deviation of 3.6 years, while randomly selected 55 faculty car...
please answer. stats.otago.ac.nz C E Classroom Mar 7 - LAWS101/LC1 2023,FY STDAV, 28 F. go Stat110s1 Assignment 2 . Where solutions are not exact, give your answer to at least the number of decimal pl...
   . 4. (This example was introduced in Chapter 2.) A friend of yours asks 20 people to rate a movie using a 1- to 5-star rating: the higher the number of stars, the higher the recommendation. Their...
Can you please provide my the solution to this with a hsort explanation. I dont´understand it.   . 0 Assume you work in the HR team of the World Food Programme and estimate that the average lunch b...
Six Sigma's two-sample t-test is one of the most frequently utilised hypothesis tests. Links to an external website., a process improvement approach, is effective. It is used to determine if the avera...
Anthropologists use a linear model that relates femur length to height. The model allows an anthropologist to determine the height of an individual when only a partial skeleton (including the femur) i...
Can you solve the question above using the article as reference. . (a) Formulate the allocation problem to maximize swab testing for Day 1 only as a linear integer problem. What is the associated tot...
 . 5. Working with a Joint Density Let the joint density of X and 1' be = c(x+_v) for0<x,y<2 f(x,y) { 0 otherwise In the parts below, do the calculus and show all your work. Don't use SymPy. ...
 . 3. The Gamma Family In this problem you will start with some calculus exercises and then develop one of the fundamental families of densities. An already-familiar distribution belongs to this fami...
 . 2. Cauchy Density This exercise is about a density that looks hell shaped but behaves quite differently from the normal. The diagram below will be helpful for Part a. Y a] Suppose that a particle ...
What is the calculation for Pearson's-R Correlation coefficient for this data set? Using the formula provided.. Pearson's-r Formula 192 Simple Regression and Correlation Table 10.9 Complaints and Veni...
 . 1. Relations Between Three Well Known Distributions a) Let U be uniform on (0, 1) and let X = - log(U). Find the possible values of X and the cdf of X. Recognize that X has a well known distributi...
Decimals Please. Chrome File Edit View History Bookmarks Profiles Tab Window Help B Q Mon Mar 20 12:22 AM Quiz: Quiz 7 X Paraphrasing Tool - QuillBot Al X T LOVE Synonyms: 173 Synonym X U of T Grading...
 . Given the population set of scores 3, 4i 5. 6i 7' a. Determine the sampling distribution of the mean for sample sizes of 2. Assume sampling is one at a time. with replacement. b Demonstrate that...
Perform the appropriate descriptive analysis of the data given in the frequency table below. Give the measures of central tendency (mean, median, and mode) and measures of variability (range, standard...
Question 2: What is the difference between period prevalence and point prevalence? (Choose the best answer).   A. The period prevalence denominator is the total person time contributed while the poin...
Provide the Rcodes in the R script file  and the statistical outputs in the Word file. In general, your statistical outputs should be titled and labeled so that they can stand on their own (and can b...
help. Page 1: Question 10 (1 point) In a Magic Square, all rows, columns, and diagonals must have the same sum. Page 2: 2 9 2 Page 3: 3 The Value of A would be (each number can only be used once): Pag...
Question 7: I want to calculate the expected number of deaths among children in Colorado aged 1 to 18 years who are suffering from pediatric cancers. You plan to use the 2020 U.S. cancer mortality rat...
Use the information below for questions 25 and 26 In Colorado, there were 1,680 deaths due to unintentional drug-related overdose in 2021. You examine the coroner's or medical examiner's reports on th...
Please Help: Use the information below for questions 22-24 Table 5a below presents death and population data for two Colorado counties in 2021. Question 22: Based on tables 5a and 5b above, what is th...
help. CLICK Here For a -> Link to Formula Sheet Page 1: Question 3 (1 point) Page 2: A restaurant offers Chinese, Korean, and Thai food. The diagram below shows the number of restaurant customers w...
    x 1 296 2 303 3 300 4 292 5 289 6 297 7 301 8 299 9 292 10 293 11 310 12 297 13 307 14 291 15 306  . A dairy company must maintain strict oversight on the weight of a box of yogurt they sell to...
 . A sample mean, sample size, population standard deviation, and confidence level are provided. Use this information to complete parts (a) through (c) below. x = 22, n=37, o=4, confidence level = 95...
Question 19: An investigator is evaluating the effect of tea tree oil on the eradication of toenail fungus in a randomized controlled trial. The outcome of toenail fungus will be ascertained by clinic...
Question 19: An investigator is evaluating the effect of tea tree oil on the eradication of toenail fungus in a randomized controlled trial. The outcome of toenail fungus will be ascertained by clinic...
 . High blood pressure: A national survey reported that 31% of adults in a certain country have hypertension (high blood pressure). A sample of 21 adults is studied. Round the answers to four decimal...
 . Battery life is an important issue for many smartphone owners. Public health studies have examined "low-battery anxietyll and acute anxi . I . when a smartphone user's phone battery charge ru...
 . The variance in a production process is an important measure of the quality of the process. A large variance often signals an opportunity for improvement in the process by finding ways to reduce t...
Let X be the random variable for the number of heads obtained when three fair coins are tossed. The mode of a probability function does not have to be unique. Find the mode of the probability function...
 . A sample mean, sample size, population standard deviation, and confidence level are provided. Use this information to complete parts (a) through (c) below. x = 22, n=37, o= 4, confidence level = 9...
A study sought to understand the association of smoking with lung cancer. The investigators recruited 530 patients with lung cancer and 550 subjects without lung cancer from the University of Colorado...
The average daily rate of a hotel in Canada as of August 2018 was $182.55. Assume the average daily rate follows a normal distribution with a standard deviation of $28.70. Standard Normal Distribution...
can anyone help. 009090.. 9 Suppose that the New England Colonials baseball team is equally likely to win a game as not to win it. If 4 Colonials games are chosen at random, what is the probability th...
m Calculate Full Time Equivalents (FTE's) for the current pay period based on hours paid as described below. Pay Period Ending April 22, 2022 Nursing Department Standard Actual Hours Paid PPE 4/22/202...
Question 1 The National Science Foundation is interested in determining the average debt held by a doctoral student when they graduate. They sampled 57 graduating doctoral students and found the avera...
   . Question 20 1 pts Consider a situation where a "fair" die is rolled. Which of the following explanations describes the relative frequency interpretation of the probability that a roll...
According to a research center, 6% of all merchandise sold in a particular country gets returned. A department store in a certain city sampled 80 items sold in January and found that 12 of the items w...
Suppose ten years ago 54% of American families owned stocks or stock funds. Suppose sample data collected by the Investment Company Institute indicate that the percentage is now 47%.(a)Develop appropr...
The national mean annual salary for a school administrator is $90,000 a year. A school official took a sample of 25 school administrators in the state of Ohio to learn about salaries in that state to ...
 . 5. The following is a partial list of grades for students in Dr. Smith's class. Using the grading scale you just created, find the new curved letter grades that the students will receive on their ...
     . Using Chebyshev's theorem, solve these problems for a distribution with a mean of 76 and a standard deviation of 16. Round kto at least 2 decimal places and final answers to at least one d...
 . The accompanying data provide the salaries, to the nearest thousand dollars, of a random sample of 20 public-company executives with salaries and bonuses totaling over $300,000. Use technology to ...
Perform the appropriate descriptive analysis of the data given in the frequency table below. Give the measures of central tendency (mean, median, mode). The people surveyed answered the question of ho...
The Director of Special Projects at a boutique clothing store needs to analyze if there is a relationship between the size of a retail store (in square footage) and weekly sales (in $ 000) by selectin...
Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to determine the value of c so that the following is true. = P ≤−1.1≤ Zc 0.8375   Carry your inte...
The following data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degree in business administration. GPA Monthly Salary ($) 2.6 3,700 3.4 3,900 3.6 4,...
Suppose that the heights of adult women in the United States are normally distributed with a mean of 65 inches and a standard deviation of 2.5 inches. Tammy is taller than 80% of the population of U.S...
Suppose that i t  =6% (n=1), and that future short term interest rates (n=1) for the next 3 years (starting next year) are expected to be: 4%, 2%, 2%.  Suppose that the liquidity premium is zero for...
 . Choose the correct answer below. O A. Reject the null hypothesis because the p-value is less than or equal to the significance level, a. O B. Fail to reject the null hypothesis because the p-value...
These are the questions. 4. Jaime and his classmates participate in a virtual postcard program for kids with long-term illnesses. After a month, Jaime wants to make a display to highlight the two most...
 . Question 9 (1 point) Saved In a metal fabrication process, metal rods are produced that have an average length of 21.5 metres with a standard deviation of 1.8 metres. A quality control specialist ...
 . Question 17 (1 point) An agency surveyed people worldwide, asking them, "Do you live in a household with more than one car?" Of the 1056 respondents surveyed in India, 440 said they live...
Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flying over similar distances in flatter portions of the nation, according to a General Accounting Offic...
Now let us talk about what conclusions can be drawn from the Assignment Seven data by choosing the best answers to the following questions. Assignment Seven Question 1: Excluding those who are designa...
 . Baby weights: The weight of male babies less than 2 months old in the United States is normally distributed with mean 12.2 pounds and standard deviation 3.4 pounds. (a) Find the 83rd percentile of...
 . Using the TI-84 calculator, find the area under the standard normal curve. Round the answers to four decimal places. (a) Find the area under the standard normal curve to the left of z = -2.45. (b)...
The Orchard Cafe has found that about 12% of the diners who make reservations don't show up. If 83 reservations have been made, how many diners can be expected to show up? Find the standard deviation ...
a certain type of concrete mix is designed to a stand 3,000 pounds per square inch of pressure the concrete is poured into casting cylinders and allowed to sit for 28 days concrete strength is then me...
State Farm Insurance studies show that in Colorado, 45% of the auto insurance claims submitted for property damage were submitted by males under 25 years of age. Suppose 11 property damage claims invo...
 . A medical researcher wants to determine how a new medication affects blood pressure. is: The equation of the regression line is 1? = 140 + [Jensenx An amount of medication of 130 mg is found to re...
 . Do you carpool? Let X represent the number of occupants in a randomly chosen car on a certain stretch of highway during morning commute hours. A survey of cars showed that the probability distribu...
Records over the past year show that 1 out of 370 loans made by Mammon Bank have defaulted. Find the probability that 5 or more out of 325 loans will default. Hint: Is it appropriate to use the Poisso...
In Hawaii, the rate of motor vehicle theft is 554 thefts per 100,000 vehicles. A large parking structure in Honolulu has issued 561 parking permits.   (a) What is the probability that none of the veh...
A researcher is studying drug use amongst teens. Based on her sample of 914 teens, the average drug use score 1.27, with a standard deviation of 0.80   1. Calculate the standard error of the mean. Ro...
 Following are the regression results for a database of home market values in a locality with market value of the house (in dollars) as the dependent variable y and the age of the house (in years) an...
 . The following table presents the number of reports of graffiti in each of New York's five boroughs over a one-year period, These reports were classified as being open, closed, or pending. A graffi...
D) if an order comes in for 10,000 steel rods,  How many rods should the plant manager expect to manufacture if the order status that all rods must be between 27.8 cm and 28.2cm?. Steel rods are ma...
 . A report states that the cost of repairing a hybrid vehicle is falling even while typical repairs on conventional vehicles are getting more expensive. The most common hybrid repair, replacing the ...
4. Following is the normalized distance matrix of sales data for four customers of a company. Apply single linkage clustering until only one option remains. Draw a dendogram illustrating the clusterin...
 . 7:46 PM Sun Mar 19 all 90% K Q n D stat_hw_4-1 ~ X . .. X Exam 1 X Estimating Ages A... X Untitled (Draft ) X stat_hw_4-1 X st_110_homework_5 T . Level 3 Practice: For your data set: a) Create a s...
Perform the appropriate descriptive analysis of the data given below. Give measures of central tendency and variability.   Label: Number of adults who live in the household Missing Values: -1 Measure...
Follow the questions prompts. Please answer a,b, & c. A bag of 100 tulip bulbs purchased from a nursery contains 20 red tulip bulbs, 20 yellow tulip bulbs, and 60 purple tulip bulbs. (a) What is t...
Please help me solve the regression equation/slope and intercept and help verify that the correlation is correct? The first 30 houses 906-935 are what was used. The scatterplot is the reference. C E G...
  Perform the appropriate descriptive analysis of the data given below. Give measures of central tendency and variability. Variable Information Name COUNTRY BY REGION Label Country by region Type F8 ...
 . A hospital was concerned about reducing its wait time. A targeted wait time goal of 25 minutes was set. After implementing an improvement framework and process, a sample of 361 patients showed the...
 . You are the manager of a restaurant for a fast-food franchise. Last month, the mean waiting time at the drive-through window for branches in your geographical region, as measured from the time a c...
 . The final scores of games of a certain sport were compared against the final point spreads established by odds makers. The difference between the game outcome and point spread (called a point-spre...
A company is reviewing a batch of 20 products to determine if any are defective. On average, 3.4 of products are defective.   What is the probability that the company will find 2 or fewer defective p...
Code the responses below  Qualitative Research Activity: Categorizing Student Responses Below are responses to the question "What is art?" generated by 25 third graders in individual interviews. Thes...
 . A boutique wants to determine how the amount of time a customer spends browsing in the store affects the amount the customer spends. 50 The equation of the regression line is Y = 2+0.9X. 40 A brow...
Please help me solve the regression equatio and help verify that the correlation is correct? The first 30 houses 906-935 are what was used.  . 908 anuska-susith 431,500 $273 1,583 909 neda 472,100 $2...
  majority of adults would erase all of their personal information online if they could. A software firm survey of 604 randomly selected adults showed that 63​% of them would erase all of their per...
 . If npz 5 and no 25, estimate P(fewer than 4) with n =14 and p =0.5 by using the normal distribution as an approximation to the binomial distribution; if np < 5 or no <5, then state that the ...
    These are the charts ive compiled with the data given to me. Can someone please help me understand the data so that I can write a report on it?    . "Color Category" = "Colorles...
 . Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ratings were obtained at one university in a state. Construct a confidence interval us...
Please answer all the questions: 1.  2.  3.  4.  5.  Table:  6.  7.  8.  9.   . Researchers performed a study to address the question of whether the mean body temperature of humans is 98.6?...
Dr. Baxter wants to demonstrate her new treatment for anxiety is more effective than the traditional treatments.  She selects 30 individuals suffering from anxiety and randomly assigns them to one of...
A researcher is studying the average cost of traveling for a college student. As part of their research, they would like to learn more about the average yearly money spent to travel to and from home b...
asap and neat donotuse chatgpt. A process manufactures ball bearings whose diameters are normally distributed with mean 2.505 cm and standard deviation 0.008 cm. Specifications call for the diameter t...
PTC is a substance that has a strong bitter taste for some people and is tasteless for others. The ability to taste PTC is inherited and depends on a single gene that codes for a taste receptor on the...
In the 2017 season, golfer Cristie Kerr's drives landed in the fairway 798 times in 1,115 attempts, for a driving accuracy of 71.6%. Is 71.6% Kerr's performance or her ability to drive the ball in the...
 . QUESTION 12 A medical research team studied the ages of patients who had strokes. The ages of the patients who suffered strokes were as follows: (The data are listed below in order) 36, 36, 39, 40...
explain how you got your answer pls. 2. Let's look into Bayesian Inference, based on Wilson's and Maron's works. Which of the following answers best explains the Bayesian inference approach? A. It for...
Despite customer satisfaction, Apple TV+ had the highest churn rate in 2022. According to the data, 13% of respondents said they canceled Apple TV+, compared to just 6% the year prior. The jump is lik...
 . Parents complain that children read too few storybooks and watch too much television nowadays. A survey of 1,000 children reveals the following information on average time spent watching TV and av...
Suppose that m and n are positive integers with m ≥ 2. The (m, n)-sawtooth sequence is a sequence of consecutive integers that starts with 1 and has n teeth, where each tooth starts with 2, goes up ...
Can someone explain what I did wrong? I had 2, 3, & 4 marked incorrect. 11. A transmitted signal X has voltage v with P(X =v) = cv , v = 1, 3, 5 . The received signal is given by Y = X + N , where...
With the FIRST post create the probability problem based on something around a house/work/etc. Find something that you can use for your probability question.  A couple of ideas are things that come i...
Suppose that you began a one-year study of tuberculosis (TB) in a subsidized housing community in the Lower East Side of New York City on January 1st, 2010. You enrolled 500 residents in your study an...
I'm having some issues with the following task - It would be perfect if somebody could help me, please. I really would like to understand the details which means that I need really detailed explanatio...
Since an instant replay system for tennis was introduced at a major tournament, men challenged 1410 referee calls, with the result that 413 of the calls were overturned. Women challenged 775 referee c...
   . Listed below are the top 10 annual salaries (in millions of dollars) ofTV personalities. Find the range. variance, and standard deviation for the sample data. Given that these are the top 10 sa...
Given the parameters, was the sample size used in the ANOVA exercise sufficient?   How do you know?  . Ba G*Power 3.1.9.7 X File Edit View Tests Calculator Help Central and noncentral distributions...
 . 6. [2/5 Points] DETAILS PREVIOUS ANSWERS DEVORESTAT9 4.5.084. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose the proportion X of surface area in a randomly selected quadrat that is covered by ...
 . (a) What is the expected number of letters in a password? (b) What is the variance of the number of letters in a password? As always, begin by defining a probability space. Solution. (a) Your solu...
 . Suppose that each time Alex throws a basketball he has a 25% probability of making the shot, independent of all other attempts. If Alex shoots the ball 7 times, what is the probability he will suc...
 . 4. [1/4 Points] DETAILS PREVIOUS ANSWERS DEVORESTAT9 4.5.072. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The lifetime X (in hundreds of hours) of a certain type of vacuum tube has a Weibull distri...
The firm found that 21% of Apple device owners are likely or highly likely to subscribe (compared to 13% of non-Apple owners). That figure goes up to 29% of the 18-24 age group and drops to 14% of the...
asap and not use AI. Consider the following incomplete grouped frequency distribution. Classes Frequency Cumulative (Rand) frequency 8.00 < 24 24 12.00 12.00 < X Y 16.00 16.00 < 46 102 20.00 ...
   . BankA and Bank B have each developed an improved process for sewing customers. The waiting period from the momenta customer enters until he or she reaches the counter needs to be shortened. A r...
   . An important feature of tablets is battery life, the number of hours before the battery needs to be recharged. The data shown in the table below contain the battery life of 10 WiFi-only and 10 ...
Can you please show me the math and how to solve this.  I am confused    The sample proportion is 0.48. What is the estimated standard error of the sampling distribution of sample proportions for s...
 . Use a t-distribution to find a confidence interval for the difference in means Md = /1 - /2 using the relevant sample results from paired data. Assume the results come from random samples from pop...
Suppose that the scores on a standardized test follow a normal distribution with a mean of 75 and a standard deviation of 10. Find the probability that a randomly selected student scored above 90 on t...
A study of the differences in cognitive function between normal individuals and patients diagnosed with schizophrenia was published in the American Journal of Psychiatry (Apr. 2010). The total time (i...
Suppose you flip a coin 100 times and get 55 heads. We want to determine if the coin is fair. 1. What is the null hypothesis of the hypothesis test? 2. Report the test statistics of the hypothesis tes...
Analyze this Community Hospital's statistics using the "Statistics of the Hospital, Formulas and their LOS Regression Analysis" supporting documents by doing the following: 1.  Calculate the average ...
1. Find the percent of the total area under the standard normal curve between the given​ z-scores. z=−1.10 and z=−0.36   2. Assume the distribution is normal. Use the area of the normal curve t...
From her firm's computer telephone log, an executive found that the mean length of 64 telephone calls during July was 4.48 minutes with a standard deviation of 5.87 minutes. She vowed to make an effor...
The students in a college all take a standardized test scored on a scale from 0 to 100 points. The mean and standard deviation are 53 and 16, respectively. Hugh's test result has a z-score of 1.19 and...
Suppose the following logit regression yielded the coefficients below: summary(glm(over100k ~ experience, family="binomial")) Intercept = -1.39 Experience = 0.49 Describe the glm results in both odds ...
1. In BostonHousing data from library(mlbench), for medv ~ crim, lambda = 0.3264 based on boxcox transformation.  2. In BostonHousing data from library(mlbench), standard deviation of medv is 9.197. ...
question f and g. 1. A fast food manager wants to be prepared to have enough of COIN change (pennies, nickels, dimes, and quarters) at the drive through window ready to give to customers. Let X be the...
A machine that produces a major part for an airplane engine is monitored closely by the quality control depart to ensure that it is not producing defective parts.  After collecting a sample of 100 pa...
Consider a population that has a score of X = 15 associated with a z-score of +1.50. What does this z-score indicate about the location of X = 15? Group of answer choices   A score of X = 15 is 1.5 m...
12-13 can you help me answer this question in excel     . 12-13. Suppose as part of your job you are responsible for installing emergency lighting in a series of state office buildings. Bids have ...
Can you explain this in excel     . 12-12. The manager at the Lawrence National Bank is interested in determining whether there is a difference in the mean time that customers spend completing thei...
 . Question 15 of 16 < > - / 12 ... View Policies Current Attempt in Progress Use a t-distribution to find a confidence interval for the difference in means My = /, - /2 using the relevant samp...
 . Ubisoft is a large manufacturer of video games. The Marketing Manager has hired a consultant to design a survey to determine attitudes towards the products. In addition the percentage of young adu...
Following are the regression results for a database of home market values in a locality with market value of the house (in dollars) as the dependent variable y and the age of the house (in years) and ...
Following is the normalized distance matrix of sales data for four customers of a company. Apply single linkage clustering until only one option remains. Draw a dendogram illustrating the clustering p...
A grocer operates a store in a small city. The total weekly sales of an item depend on the price, coupon (available = 1, not available = 0), and advertising expenditures. After analyzing the data, an ...
 . Question 16 of 16 - / 10 E View Policies Current Attempt in Progress Use a t-distribution and the given matched pair sample results to complete the test of the given hypotheses. Assume the results...
 . Question 15 of 16 < > - / 12 ... View Policies Current Attempt in Progress Use a t-distribution to find a confidence interval for the difference in means My = /, - /2 using the relevant samp...
An aircraft has three independent computer systems all doing the same critical task. Each system has a probability of failing on a flight as follows: 0.1 for System 1, 0.2 for System 2, and 0.04 for S...
I need help with below questions please. Data in table      City Single family Condo or co-op All homes Household income Unemployment Population Atlanta, GA 403,000  298,000  317,000  55,279  8...
 . Q1) Critically evaluate the survey described below using the concepts learned in this course and answer the following questions. 1. Based on the study, identify and discuss possible sampling metho...
This module we've spent a lot of time looking at different ways of summarizing variable distributions - both with summary statistics and with visualizations. This discussion assignment will focus on a...
Answer question 7 and 8 (across two pictures) with explanations please. Question 7 (10 marks) A recent study shows that long-term use of computers leads to hair loss. The study involves questionnaires...
A plastics molding factory that must treat its waste before discharge. The average amount of pollutant discharged (lb per day) depends on three factors: the chemical compound added (choose either chem...
1. Suppose that a year has 365 days and that birthdays are equally distributed over the year. In our class, we have 250 students, what's the probability that at least two students have the same birthd...
 . Question 2: A secretary types five letters and the five corresponding envelopes. In a hurry, they place at random one letter in each envelope. what is the probability that: (a) at least one letter...
 . Question 1: In the well known game of TattsLotto, the winning numbers are six number selected without replacement from forty five numbers, ie., 1,2,. . .,45. Two supplementary numbers are also se...
2.   Five individuals respond to five questions using a Likert scale of 5 (strongly agree),     4 (agree); 3 (undecided);2 (disagree), and 1 (strongly disagree).  You task is to look over this sm...
1. Use Chapter 5 Data Set 2 in the appendix or below to answer Questions 1a and 1b.  a. Using SPSS, compute the Pearson product-moment correlation coefficient.  b. Construct a scatterplot for these ...
Suppose the lengths of fish in a certain lake are nor- mally distributed with a mean of 20 inches and a standard deviation of 3 inches. What is the length of a fish that is at the 90th percentile of t...
   . What is the probability of Type I error? 0 beta (9 alpha 0 alpha+beta O alpha*beta SUBMIT. When finding the confidence interval, what is the degrees of freedom for the t-test? O n O n-2 O n-1 O...
The owner of a fish market has an assistant who has determined that the weights of catfish are normally​ distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. What percentage of ...
hello, please answer question 3 in steps with all calculations. thank you. Q3. A study was conducted to determine the effect of the frequency of fires on forest diversity. One-hectare plots were rand...
1500 randomly selected pine trees were tested for traces of the Bark Beetle infestation. It was found that 153 of the trees showed such traces. Test the hypothesis that more than 10% of the pine trees...
A person draws a card from a hat. Each card is one color, with the following probabilities of being drawn: 1/25 for purple, 1/20 for black, 1/15 for yellow, and 1/10 for green. What is the probability...
 . The CEO of a large electric utility claims that 80 percent of the company's 1,000,000 customers are very satisfied. The local newspaper believes that customer satisfaction is less than this. The n...
i need a linear regression and a residual plot. i need the code for how you got it as well as a screenshot of the graphs you got and code too.  itll be age(birth order) and gpa for what will be the i...
 . Q3. Perceptron (5 marks) We showed in lecture that no perceptron can compute the binary XOR function. Show that in general, for any n 2 2, this is true for the n-ary XOR. That is, for any n 2 2, t...
 . Select the correct Null and Alternative Hypothesis for the following situation: A local consumer group claims that less that 830 out of 1,000 utility consumers are satisfied with their electric ut...
A restaurant hands out a scratch-off game ticket with prizes being worth purchases at the restaurant. The back of the ticket lists the odds of winning each dollar value: 0.3 for $5, 0.2 for $10, 0.1 f...
i need to make a linear regression and a residual plot with my data below. it will be oldest GPA vs. non oldest ( everyone who is not the oldest) GPA. im having a hard time coding everything. can some...