Statistics and Probability questions and answers in March 2023

 . At a particular restaurant, 46% of all customers order an appetizer and 43% of all customers order dessert. If 20% of all customers order both an appetizer and dessert, what is the probability a r...
 . (S 10.2) Test the null hypothesis Ho : p = 0.5 against the alternative hypothesis HA : p < 0.5 , when 85 individuals in a random sample of 213 have a characteristic of interest. Calculate the v...
God's Own: The Genesis of Mathematical Story-telling The Genesis of Mathematical Story-telling  and watch the ACE video on Ndebele Doll Making in the course materials section of Blackboard.   What p...
Ho:a = 1,400 Haμ> 1,400 x = 1,416, n = 114, σ = 110, a = .10 Appendix A Statistical Tables a. Use the data given to test the following hypotheses. (Round your answer to 2 decimal places, e.g. 15....
Means   Nationality N Mean StDev 95% CI CAN 37 5420267 3665496 (4294459, 6546075) Other 40 2580750 3239295 (1497983, 3663517) USA 45 3483333 3471974 (2462490, 4504176)   Tukey Pairwise Comparisons ?...
A toll bridge charges $1.00 for passenger cars and $2.25 for other vehicles. Suppose that during daytime hours, 60% of all vehicles are passenger cars. If 20 vehicles cross the bridge during a particu...
        10 ) One journal reported on a study of homophone spelling in patients with a certain disease. Twenty patients were asked to spell 24 homophone pairs given in random order. Then the number...
 . 4. The table below gives the U.S. consumer price index (CPI) for selected years from 2012 and projected to 2050. With the reference year as 2012, a 2020 CPI=120.56 means goods and services that co...
 Express Bike Works: Washing in Style this question is about Niraj Taksande, the owner of Express Bike Works (EBW), is planning to expand his bike washing business to various locations in South India...
Suppose SAT Writing scores are normally distributed with a mean of 498 and a standard deviation of 108. A university plans to award scholarships to students whose scores are in the top 4%. What is the...
Look at charts and answer however you can 1. Begin your report with an overview of the analysis: what are the goals of the study? What are the relevant variables, and how will you be analyzing them? ?...
A deck of cards contains red cards numbered 1,2,3 and blue cards numbered 1,2,3,4,5. Let R be the event of drawing a red card, B be the event of drawing a blue card, E be the event of drawing an even-...
The higher mortality rates from Coronary Heart Disease (CHD), along with higher rates of obesity and type II diabetes in the southeastern region of the United States can almost exclusively be attribut...
"Innocent until proven guilty" is a well-known legal maxim in this nation. Respond to the questions that follow once you have learned about hypothesis testing and the many kinds of errors. How does th...
Revision (show thorough working)   At a large restaurant, 3 out of 5 customers ask for water with their meal. A random sample of 10 customers is selected. Find the probability that Exactly 6 ask for ...
"Innocent until proven guilty" is a well-known legal maxim in this nation. Respond to the questions that follow once you have learned about hypothesis testing and the many kinds of errors. What about ...
Working Professional College magazine was developed for a target audience of recent college graduates who are in their first 10 years in a business/professional career. In its two years of publication...
The values and relative frequencies for a set of data are shown below. Complete the cumulative relative frequency table. Provide your answer below:     Data Value Relative Frequency Cumulative Relat...
The results from Manson et al. 1999 indicated that greater physical activity is associated with lower risk of Coronary Heart Disease. However, when controlling for the total volume, Vigorous Physical ...
You ask a group of 10 adults to participate in a reaction time task concerning verbal comprehension while under the influence of a low dose of amphetamine (one of a variety of "speed" drugs, or centra...
The mean number of past relationship partners for the population of people between the ages of 18 and 26 years living in the U.S.A is µ = 4.8. The standard deviation is  = 2.4.  A psychologist pre...
      3. Time for some tedious, by-hand practice just to see if you can get the numbers right. Using the following information, calculate the t-test statistics by hand. X1 = 62 X2 = 60 n1 = 10 n2 =...
    Question 1: Explain why a one-way ANOVA should be conducted to compare the mean salary of the players nationality groups as opposed to a series of three independent means t tests.    Question ...
what code do I need to make the following in R studio?   •First, a 3-way collapsing table with two job titles (Teacher & Manager), 6 levels of working experience (i.e., 1 to 5, 5 to 10...), and...
Please provide the answer to QUESTION B. MyLabel (Chapterll Due 4 X ) Do Homework - Mylab #8 X () MyLab FB (Chapter Eight)- X II P Value- Definition, Fo C axlitemprod.pearsonomg.com/api/vl/print/highe...
Find the regression​ equation, letting overhead width be the predictor​ (x) variable. Find the best predicted weight of a seal if the overhead width measured from a photograph is 2.4 cm. Can the p...
Please answer parts 1-9 and if possible, the bonus question, relating to graph theory and probability.  . pairing up people one to one and swapping their mail might raise suspicion, BagelBot settles ...
Suppose a random sample x_1,....,x_100 is generated from the chi-square distribution with degrees of freedom 3. Let x ̅ be the sample average, i.e., x ̅=(x_1+⋯+x_100)/100 . Please calculate var(x ...
Type Amount Eaten cm Volume Eaten Premium Blend Black Oiler Sunflower 7.5 2944.9 Premium Blend Black Oiler Sunflower 0.5 208.0 Premium Blend Black Oiler Sunflower 0.5 211.9 Premium Blend Black Oiler S...
 . Question 2 1 pts Is this research design balanced or unbalanced? O unbalanced O balanced O Not enough information is given to answer this question Question 3 1 pts What are the treatments? O ferti...
what code do I need to make the following?   •First, a 3-way collapsing table with two job titles (Teacher & Manager), 6 levels of working experience (i.e., 1 to 5, 5 to 10...), and 3 levels of...
The number of students in the tutoring center was recorded for 33 randomly selected times. The data is summarized in the frequency table below.   Number    of Students      Frequency    0 ...
A random sample of 63 produced the summary statistics x=0.387 and s2=0.033. a. Test the null hypothesis that μ=0.42 against the alternative hypothesis that μ<0.42, using α=0.10. What is the valu...
1. The results from an independent-measures t hypothesis test are reported as "t(24) = 3.85, p < .01, two tailed."The research study for this test used a total of 26 subjects.​ Group of answer ch...
(All ONE problem just split into several parts.) I provided pictures of drop down answer options for the parts that require them, please use and thanks for your time. . The weekly running distance wa...
Question 1 (1.33 points)     Saved             Taking an herbal extract allegedly allows you to lose 5 pounds in 5 days. You decide to test this by enlisting 12 classmates. You weigh each clas...
BigDeal Real Estate surveyed prices per square foot in the valley and foothills of Hoke-a-mo, Utah. Based on BD's DATA, are prices per square foot equal at α = 0.01? Valley Foothills 109 103 116 1...
Bobo's Bad Burgers fast food claims you will be in and out in 5 minutes. To test this claim, time in minutes from entering Bobo's to receiving the order was secretly recorded. The results are document...
Solve with Rmarkdown and show with Rcode.   Textbook: Applied Linear Regression Models 4th Edition  by Kutner et al. Question 5.5. 5.5. Consumer finance. The data below show, for a consumer finance ...
 . Visit your local library: On a recent Saturday, a total of 1253 people visited a local library. Of these people, 245 were under age 10, 458 were aged 10-18, 173 were aged 19-30, and the rest were ...
Johnson Filtration, Inc., provides maintenance service for water-filtration systems throughout southern Texas. Customers contact Johnson with requests for maintenance service on their water-filtration...
You run an analysis and get the following information (use this information to answer questions 21-22, 5 points each):   Mode = 15, Median = 17.5, Mean = 21.4, Skewness = 2.86, Kurtosis = 3.45   21....
A manufacturer knows that their items have a normally distributed length, with a mean of 12.4 inches, and standard deviation of 4.1 inches. If one item is chosen at random, what is the probability tha...
How would this problem be computed in an excel document, please? The average cost for the sample of 5 sales of a product is = $230 and the sample standard deviation is s = $17.50. The hypothesized mea...
 . Consider the set of eight data shown below (in sorted order). If you were to create a stem-and-leaf diagram for these data, how many leaves would appear on the stem labeled 6? 6.2, 6.5, 6.5, 7.2, ...
I am having trouble finding the test statistic for both parts of this question. The data that is used for this question comes from this link: https://docs.google.com/spreadsheets/d/1rh7fxl3WAoie2ZqB4p...
The average lifetime of a certain new cell phone is three years....   The average lifetime of a certain new cell phone is three years. The manufacturer will replace any cell phone failing within two ...
 . A research examines the correlation between anxiety and empathy. Use the output below to answer the questions Correlations Statistic Variable Variable 2 Correlation Count Lower C.I. Upper C.I. Not...
 . Among 20 golden hamster litters recorded, there was a sample mean of x = 7.72 baby hamsters, with a sample standard deviation of s = 2.5 hamsters per liter. Create a 97% confidence interval for th...
When is it appropriate to use a one-sided hypothesis test? Group of answer choices  When you alternative proportion hypothesis is either less or greater than  Only when your alternative hypothesis p...
1. In a study of the length of time that students require to earn bachelor's degrees, 80 students are randomly selected and they are found to have a mean of 4.8 years. Assuming that the population sta...
If the amount of variability between-means/groups is significantly less than the amount of variability within-groups, then ________. Question 1 options: a) conclude that the ratio of between-means var...
 . Use the accompanying set of dependent and independent variables to complete parts a through c below. Click the icon to view the data set. a) Using technology, construct a multiple regression model...
 . RESEARCH STUDY 9.1: Dr. Farah is an educational psychologist who is interested in studying the potential causal relationship between doing homework and academic achievement. In January, Dr. Farah ...
You have been hired by the Regional Real Estate Company to help them analyze real estate data. One of the company's Pacific region salespeople just returned to the office with a newly designed adverti...
 . A realty group would like to develop a regression model to help it set weekly rental rates (y) for beach properties during the summer season. The independent variables for this model are the numbe...
If you are critiquing whether the variables in a correlation are measured appropriately which type of validity are you assessing?   external validity   construct validity   statistical validity  ...
 . Below is a table for a bivariate regression of science score on gender. Science score Coef. Std. Err. Z P> |ZI [953 Conf. Interval] female 2 . 55 . 0861224 3.94 0. 000 . 1703459 . 5079395 cons ...
SOC 201 Lab Section Week 11   1. Scientists examined data on mean sea surface temperatures (in degrees Celsius) and mean coral growth (in millimeters per year) over a several-year period at locations...
      (a) Find the​ least-squares regression line treating the commute​ time, x, as the explanatory variable and the index​ score, y, as the response variable. y= x+ () ​(Round to three dec...
 . Problem 1 A monkey climbs a ladder with n bars, so they jump to the next bar at rate A but fall at the bottom of the ladder independently at rate /. Once at the top, the monkey can only fall with ...
You have been hired to estimate the size of the population of pileated woodpeckers residing in bottomland forests in Arkansas. There are 550,000 acres of bottomland forests in the state. You conducted...
You are the superintendent of a state park that is open every day during the summer. You must order ice cream for the month of July at the beginning of June. You have conducted a sample of daily ice c...
You are trying to estimate the total number of deer that will be harvested during Wisconsin's 2023 deer season. You collected a sample (n = 10) from deer management units and found that hunters harves...
At Hopewell Electronics, all 140 employees were asked about their political affiliations: Democrat, Republican or Independent. The employees were grouped by type of work, as executives or production w...
variable1 variable2 5.92418 16.01040 -2.15342 6.90096 -5.68710 3.20965 -2.35173 8.11837 9.13267 20.86393 8.84593 17.88436 0.60205 11.33976 4.30225 13.72104 -9.69073 0.22652 -6.81619 2.88607 7.00841 14...
 . Below is a table for a bivariate regression of annual commission on number of items sold. Regression Coefficients Unstandardized Coefficients Standardized Coefficients t Sig. Model B Std. Error Be...
Q2. A camera has been developed to detect the presence of cataract more accurately. Using this camera, the gray level of each point (or pixel) in the lens of a human eye can be characterized into 256 ...
Q1. A company labeled its can soup with 900mg sodium per serving. A consumers' group is concerned that the soup contains less sodium than what is listed on the can. A sample of 25 cans had a mean sodi...
 . For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey was done on 27 students, and the distribution of total study hours per week is bell-s...
Let x 1 , x 2 , ... , x n be a random sample from the population with mean μ and variance σ 2 . Then for a large n, the mean of the random sample will be normally distributed with mean μ and varian...
 . A survey was conducted to measure worker opinions about pets in the workplace. Those who worked in pet-friendly offices were found to believe it improves the atmosphere in the workplace. The major...
USE ONLY R. PLEASE PROVIDE A THOROUGH EXPLANATION AND THE STEPS AND THE SCRIPT . ITS DIVIDED INTO 2 PARTS  . Part 2 To evaluate whether meditation has an effect on sleep quality, 10 students were rec...
 . ASSIQHmBHIS Complete the following tasks outlined below. Module 6: R Practice Assignment Instructions It's time to look deeper into a dataset to examine relationships between yariables.You will al...
The average sales price of single-family houses in Mooresville is $345,000 with a standard deviation of $15,000. A random sample of 80 single-family houses in Mooresville is selected. Let X¯ represe...
A researcher records the following data for each of four groups. Can an F statistic be computed for these data? Explain. Group A.    Group B      Group C        Group D 3              ...
Scientists have done an experiment at two universities. At the first one they followed 10,000 for four years and found 41 cases of scurvy. At the other they followed 20,000 for three years and found 2...
   . A simple random sample of 32 men from a normally distributed population results in a standard deviation of 10.9 beats per minute. The normal range of pulse rates of adults is typically given as...
Manufacturer A B C D 25 23 25 22 23 21 25 23 21 23 25 23 23 24 21 22. To test whether the mean time to mix a batch of adhesive is the same for machines produced by four manufacturers, TiteBondMax obta...
 . D Question 21 2 pts When proper probability notation is used, a numerical probability will never be less than O or greater than 1. True False D Question 22 2 pts The symbol u represents the popula...
 . Canvas X < > X C A B Q D Question 20 8 pts In a specific Florida county, the age of U.S. citizens who vote in elections is left-skewed. First, you randomly select two people from this datase...
 . Canvas X X C B B Q D Question 16 2 pts An observational study can not make cause and effect claims because of possible confounding variables. True False D Question 17 2 pts The average you calcula...
Reducing Costs and Increasing Value Most agree that attempts to control healthcare costs too often have either modest or no success. Other countries have managed to control costs by limiting or ration...
Health surveys are commonly conducted to evaluate the overall state of affairs in terms of health decisions and trends. The Centers for Disease Control collects thousands of data elements from a varie...
   . 10. The observation, x(u), and desirable, z(u), are given by x(u) = w(u)x1 + v(u)x2 z(u) = v(u)Z1, where 16 X1 - [8] x -18 Z1 = 8 and the joint probability of w(u) and v(u) is given by. w(2) 0 ...
A company prices its tornado insurance using the following assumptions: • In any calendar year, there can be at most one tornado. • In any calendar year, the probability of a tornado is 0.07. • ...
Am I doing this correctly?  just need a second set of eyes that are well-versed in Statistics to confirm if I am verifying all the assumptions and if my steps are correct. . Matl'. 280 — Introdu...
CHAPTER 8  . Question list 0 Question 1 0 Question 2 0 Question 3 0 Question 4 lé A polling website publishes the results of a new survey each day. At the end ofthe survey results, you'll find a st...
Consider the scenario: A research paper claims a meaningful contribution to the literature based on finding statistically significant relationships between predictor and response variables. In the foo...
Please Help! ASAP! Thank you so much! :-). < Quiz 2 - Chapter 4 32 : 35 Question 7 of 8 < > - /1 ... View Policies Current Attempt in Progress Given that A and Bare two mutually exclusive eve...
7525) 550on hot, sunny, summer days , jane rents inner tubes by the river that run through her town. Based on her past experience, she has assigned the following probability distribution to the number...
Please help ASAP! Thanks!. < Quiz 2 - Chapter 4 52 : 58 Question 6 of 8 < > - 13 E ... View Policies Current Attempt in Progress Terry & Sons makes bearings for autos. The production syst...
Background Info:     ȳ=(72+74+7 6+77+81+84+85+91)/8= 80.25 Population variance : σ 2= N 1​∑ i =1 N ​( Yi ​− μ )2 N = population size= 8 Yi = population values  μ = population mean   ...
Please help ASAP. Thank you so much! . < Quiz 2 - Chapter 4 01 : 06 : 22 Question 4 of 8 < - /1 ... View Policies Current Attempt in Progress Given that A and B are two independent events, find...
Please help ASAP. Thank you inadvance!. < Quiz 2 - Chapter 4 01 : 09 : 59 Question 3 of 8 < > - /1 ... View Policies Current Attempt in Progress A statistical experiment has eight equally lik...
Please help ASAP! Thank you so much!. < Quiz 2 - Chapter 4 01 : 16 : 11 Question 2 of 8 < - /1 ... View Policies Current Attempt in Progress Find P( A or B) for the following. P(A) = 0.60, P(B) ...
In a test of the hypothesis H0: μ=50 versus Ha: μ>50, a sample of n=100 observations possessed mean x=49.4 and standard deviation s=4.7. Find and interpret the p-value for this test. Question con...
Can someone please help ASAP? Thank you!. < Quiz 2 - Chapter 4 01:26:53 Question 1 of 8 < > - /1 ... View Policies Current Attempt in Progress A random sample of 1201 adults showed that 688 o...
the number of tickets purchased by an individual for Beckham college's holiday music festival is uniformly distributed random variable ranging from 1 to 9    find the mean and standard deviation  o...
 . 2t-table.xls X Do Homework - MyLab #8 (Ch. x + om/Student/PlayerHomework.aspx?homeworkld=640905499&questionld=4&flushed=false&cld=7246093&back=DoAssignments.aspx tHealth Sha... V M...
A metropolitan transportation authority has set a bus mechanical reliability goal of 3,800 bus miles. Bus mechanical reliability is measured specifically as the number of bus miles between mechanical ...
Capítulo 6: ¿Qué te gusta comprar? Funciones y formas: Cosas de familia The following are some facts about Elena's family. Select the option that best completes each of her statements.  1.  Mi he...
1. What do you think is the aim of hypothesis testing? 2. What does hypothesis testing achieve that could not be otherwise achieved? Questions are taken from "Essentials of Social Statistics for a Div...
In a test of the hypothesis H0: μ=50 versus Ha: μ>50, a sample of n=100 observations possessed mean x=49.3 and standard deviation s=4.8. Find and interpret the p-value for this test. The p-value ...
In a test of the hypothesis H0: μ=40 versus Ha: μ>40​, a sample of n=100 observations possessed mean x=39.5 and standard deviation s=3.5.  Find and interpret the​ p-value for this test. T...
Effect size for the chi-square test for independence Which of the following statements are correct about the phi-coefficient? Check all that apply. It is determined only by the proportions in a 2 x 2 ...
  Consider a manufacturing process that is producing hypodermic needles that will be used for blood donations. These needles need to have a diameter of 1.65 mm—too big and they would hurt the donor...
Alden is registering for classes next semester. He uses the Quantitative Reasoning Process to decide between two teachers, Dr. Alvarez, and Dr. Bareno . He speaks to 19 friends that previously took th...
A sample of students that had stuffy or runny noses were blindly given a single Skittles candy to put in their mouth. They were told the five possible flavors and then were asked which flavor they had...
Question 1 In June 2021, Gallup published an online article titled Public Backs Requiring COVID-19 Vaccine to Attend SchoolLinks to an external site. by Jeffrey M. Jones. According to the article, 61%...
 . In this problem, round to 3 decimal places. Suppose the true proportion of voters in the county who support a restaurant tax is 0.61 . Consider the sampling distribution for the proportion of supp...
Prompt Harris Interactive® conducted a poll of American adults in August of 2011 to study the use of online medical information. Of the 1,019 randomly chosen adults, 60% had used the Internet within ...
The regression equation and the standard error of estimate The following scores represent the decrease in symptom intensity (on a 10-point scale) following the new nutrition therapy.   Scores Patient...
question 2,a b c need help thks.  . Question 2: Discrete transformations a. Let X ~ Bin(4, 1/2). Make a table like the one below showing the distribution of X. P(X = x) 0 2 3 b. Let Y = X -3. What va...
Use a significance level of .05 for all analyses.   A researcher wanted to determine whether showing a word upside down versus right side up affects memory of the word.  Thirty students were randoml...
 . Suppose you are given a population of size 600 with a mean of 130 and a standard deviation of 14. If you take a simple random sample of size 60, what are the following values? (Enter z-values to 2...
MAT 160 - Confidence Interval Practice Worksheet ZInterval Problems In a study of the length of time that students require to earn bachelor's degrees, 80 students are randomly selected and they are fo...
Please read the following program evaluation and answer the following questions: In the response, offer assistance by providing clarity on the indicators that are proposed and how they propose to coll...
In a local university, 63% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. We know that the standard error of the proportion is 0.0540. Find...
Graph the following system of equations. −x+y=1−�+�=1 −2x+5y=−10−2�+5�=−10   What type of system is this?    Inconsistent. The lines are parallel and never cross. There are no s...
Graph the following system of equations. −x+y=1−�+�=1 −2x+5y=−10−2�+5�=−10   What type of system is this?    Inconsistent. The lines are parallel and never cross. There are no s...
Aerobic, Resistance, and a combination of Aerobic+Resistance Training could all be used as potential modes of exercise to acheive weight loss in adults with obesity. When compared to diet alone, exerc...
Graph the following non-linear system of equations and identify the two solutions. (Remember that for a system of equations to a linear system, all the equations would have to be linear. If even one f...
 . 1. (13 points) A plant grower was considering two types of grow lights. She started hundreds of plants from the same batch of seeds, using the same soil and containers for all the plants. She grew...
 . A city planner surveyed 133 residents. For each, the planner recorded whether the resident owns a car and whether the resident lives alone. The results are summarized in the table below. Alone Not...
Help with this question:    . EXERCISE 10-7 Scientists developed a new memo-d of determining serum iron concentrations. To check the accuracy of the method, they made 20 analyses of control sera. wi...
Paraphrase the following direct quotations without using the author's exact words or synonyms.    "Creating a culture of positive mental health and reducing barriers to treatment as well as stigma-r...
The mean score for a class sitting a Physics test is 46, with stan- dard deviation of 4. The mean score for the same class in a Chem- istry test is 77, with standard deviation of 9. Each set of scores...
Out of 100 people sampled, 21 had kids. Based on this, construct a 90% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to three places  <...
I would like to conduct a qualitative analysis or research on mental health stigma among college students. I need assistance with answering the following questions:   For project proposal please answ...
League position Club Teams market value Total value of all clubs: €8.36bn 1 Manchester City €1.14bn 2 Chelsea FC €976.75m 3 Liverpool FC €966.25m 4 Arsenal FC €643.00m 5 Manchester United ?...
The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers​ (and use an incentive of​ $50 worth of downloads to gu...
Suppose there is a population of five people with height in inches as follows: 58, 62, 63, 70, and 77. Calculate the population variance using a calculator. Show your work to derive the final answer. ...
 . You may need to use the appropriate appendix table or technology to answer this question. A random sample of 82 airline pilots recruited by an airline service had an average yearly income of $99,1...
 . A recent survey of college students finds that the median amount of time spent daily online is 7.5 hours, with a mode of 6 hours. a) Interpret the median in a sentence(s). Make sure it is in the c...
A regional airline, Northwest Commuter, has started operating on the west coast of the United States. It has become established as a no-frills airline providing low-cost commuter flights between the w...
 . Question list Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Ié Suppose that you are testing the hypotheses H0: p = 0.17 vs. HA: p ¢ 0.17. Asample of size 25...
Suppose number of kernels on a corn cob is normally distributed with a mean of 600 and a standard deviation of 144. A random sample of 16 cobs is selected.  What is the probability that the total num...
 . 0.004899 (Round to six decimal places as needed.) (b) What is the probability of obtaining x = 99 or more individuals with the characteristic? That is, what is P(p 2 0.66)? P(p 2 0.66) = (Round to...
The students in Josh's Statistics class (n = 12) are receiving an average of 5.6 speeding tickets a month (you people need to SLOW DOWN). For the entire student body of Johnson, the monthly average fo...
Provide in the plain text R commands that finds/solves the following:  A study investigates the distribution of annual income for heads of households living in public housing in Chicago. For a random...
 . of 3 V + Mat 120 - Statistics - Test 4 ( waybo says ) Name: Validate the probability distribution table where x = $ profit and P(x) is the probability of earning the profit then answer the questio...
Scenario You have been hired by the Regional Real Estate Company to help them analyze real estate data. One of the company's Pacific region salespeople just returned to the office with a newly designe...
 . 13. A company uses automated sprayer to apply coating to metal. The company sets the sprayer to apply the paint one-inch thick. The company wants to estimate the mean thickness the sprayer is appl...
Find a journal article that uses a Fisher's exact test to test for independence of two categorical variables (in a contingency table). Prevalence and correlates of food insecurity among U.S. college s...
The heights of adult men in America are normally distributed with a mean of 69.4 inches and a standard deviation of 2.69 inches. The heights of adult women in America are also normally distributed but...
This only needs to be a paragraph or 2 Give an example of an event in a random experiment and define its complement. What is the difference between discrete and continuous random variables? Include a ...
Case Study 5: Descriptive Statistics about Bicycle Commuting   Use Item 1: Number of People Who Bike to Work in Select States (given on the last page of this document) to answer the following questio...
 . Question list K For each of the following situations, find the critical value(s) for z. a) Ho: p=0.7 vs. HA: p#0.7 at a = 0.1. b) Ho: p= 0.3 vs. HA: P> 0.3 at a = 0.1. c) Ho: p =0.8 vs. HA: P &...
Constructing a Confidence Interval for the Mean Overview Confidence intervals come into play when we want to create a better approximation for what the true value of a parameter is. In this module, we...
The Empirical Rule states that for bell-shaped distributions, about 68% of the values fall within 1 standard deviation of the mean. The heights of women at a large university are approximately bell-sh...
  Hello please help me In steps how to build this Excel    Thank you!  . Introduction You are a partner in a small charter air services company. You and your partners want to reduce maintenance co...
You may need to use the appropriate appendix table or technology to answer this question.   Two hundred students are enrolled in an Economics class. After the first examination, a random sample o...
Question 3:  Matthew wants to estimate the mean height of students attending a basketball game. He records the heights of 30 randomly selected students attending the basketball game. What is the pop...
Step 5 of 10:   Now, consider the scatterplot for the countries with worse Internet infrastructure (Internet_high=0).  ​​ What is the direction of the association?  Indicate how you can tell. ?...
Scenario   You have been hired by the Regional Real Estate Company to help them analyze real estate data. One of the company's Pacific region salespeople just returned to the office with a newly desi...
A survey​ asks, "If the husband in a family wants​ children, but the wife decides that she does not want any​ children, is it all right for the wife to refuse to have​ children?" Of 749 ​sub...
Suppose that the heights of adult women in the United States are normally distributed with a mean of65 inches and a standard deviation of2.4 inches. Laura is taller than75% of the population of U.S. w...
 . Listed below are the commissions earned [$000) last year by a sample 01°15 sales representatives at Furniture Patch Inc. $4.9 $ 5.3 $2.4 $10.? $12.1 $13.5 $14.1 $15.9 $15.3 $12.4 $17.2 $22.3 $35....
  Coin Simulator Link: https://iupbsapps.shinyapps.io/coin-sampling/ Matching Simulator Link: https://iupbsapps.shinyapps.io/match-sampling-2/. 1. My friend and I recently got into an argument about ...
 . For questions 3(a)-3(d) use the Stata output and cite the source table/statistic for each answer. The output is produced using the dataset, schooldata, which contains information from 18 randomly-...
Complete Questions, A - D in image. 6. Complete the following problem using a .05 significance level and a two-tailed test. The population mean for a reading comprehension test is 100 and o = 15. You ...
  Complete the computation (IN YELLOW BOX):. Lab 7.10 Complete the computation [IN YELLOW BOX) below: Confidence Intervals Let's then say that we want to construct a 95% CI about the mean for the p...
ANSWER EVERY QUESTION IN THE PICTURE. Lab 7.10 6. Suppose you plan to select 100 random samples of size N = 25 from a population of intelligence test scores with u = 100 and o = 15. a. What proportion...
Consider the following algorithm: g 1 = 8 g 2 = 8 For k starting at 3 and ending with 8:     g k = (k-1)·g k-1 + g k-2 What is the last term, g 8 , of the recursive sequence generated as a result o...
ANSWER EVERY QUESTION IN THE PICTURE. Lab 7.10 Name Complete the table below Term Symbol Definition (also include formula as appropriate) Unbiased estimator None Population standard deviation Standard...
Wait Time (minutes) 1.0 5.3 1.1 0.2 0.2 1.8 0.4 1.5 3.5 0.7 3.0 2.5 0.4 1.3 5.7 2.1 0.8 7.6 1.3 1.2 1.3 3.7 4.2 2.1 0.3 3.3 5.8 0.6 2.0 7.5. Bobo's Bad Burgers fast food claims you will be in and out ...
could you please write on paper?. 4. (Constrained linear regression) Consider the linear regression model Y = X3* + E, where Y E R", X E Roxd, 3* is in a closed convex set K C Rd, and & ~ N(0...
For a confidence interval for a population parameter (e.g., the population mean) computed at a 92% confidence level, what proportion of all possible confidence intervals will contain the true paramete...
Below is a table for a bivariate regression of science score on gender.             What is the dependent variable?  What is the independent variable?       Write out the regression equation...
 . Problem 1. (1 point) Problem 4. (1 point) Suppose that X is normally distributed with mean 120 and stan- Fluorescent lighbulbs have lifetimes that are normally distributed dard deviation 21. with ...
 . Solve the following problem using Ford-Fulkerson technique to find the Maximum flow from Node A to Node K. The starting Path must be A- C-G-F-K shipping 11 units. In the space provided below, typ...
Which of the following would decrease the minimum sample (test) size needed?   a   More complex test design   b   More confidence   c   More power   d   Larger KPI value   e   Smaller minima...
  Binomial Distribution           Problem Statement           A common example of a binomial distribution is the tossing of a coin and counting the number of heads. For example, what is the...
For each of the following regression equations, explain how the criterion variable                  (Y) changes as the predictor variable (X) increases. Hint: You can find the    ?...
The mean annual income for people in a certain city (in thousands of dollars) is 44, with a standard deviation of 31. A pollster draws a sample of 38 people to interview. What is the probability that ...
i beed this assap   Scenario 1:  A researcher is examining the effects of a treatment to stop smoking. The researcher uses two randomly selected groups of 40 participants each, one that receives the...
Teachers' Salaries in Connecticut:   The average teacher's salary in Connecticut (ranked first among states) is $57,337.  Suppose that the distribution of salaries is normal with a standard deviatio...
Final Project Assignment InstructionsScenario Background: A marketing company based out of New York City is doing well and is looking to expand internationally. The CEO and VP of Operations decide to ...
The Annual rainfall in a particular region of the country has a mean of 75 inches and a standard deviation of 10 inches. If the rainfall is assumed to be normally distributed, find the probability tha...
The following are goals scored by a soccer team at each game in their recent season.   0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 3 3 4 5 Complete the relative frequency table. Goals Frequency Relativ...
  Part One: Pearson Correlation Suppose we follow a 65-year-old woman with low bone density for 8 years; she is treated with alendronate throughout the life of the study. Bone density is measured at ...
 . Probability and Statistics Name Chapter 9 - Quiz 1 1. Identify the following scatter plots as either having a 2. Below is a table showing the number of hours a statistics positive linear correlati...
USING KNIME    What data to include and how to classify it (Integer, string)          Data Set Information: The data is related with direct marketing campaigns of a Portuguese banking instituti...
 . Question 8 of 15 This question: 1 point(s) possible Submit test The ages of five randomly chosen cars in a parking garage are determined to be 7, 9, 3, 4, and 6 years old. If one considers this sa...
 . Consider the CTMC 2 Suppose at tzo, X. = 1 and let Tiz be time to transition from State I to State 2. a . find P ( 712 > 2 1= 1, t= 0) h. Suppose the system is in state 2 at time 10 find P ( T2...
ANSWER EVERY QUESTION IN THE IMAGE (FILL OUT DEFINITIONS & DATA SETS).. Lab 8.10 Stats 210 Lab Chapter 8.10 Name This exercise is to help you to become more comfortable in recognizing statistical ...
ANSWER EVERY QUESTION IN THE TWO IMAGES.. Lab 6 Psychology 44 Lab 6 Name Complete Chapter 6 Review Questions: 1. Over the years, thousands of scores have been collected for the Wechsler Adult Intellig...
hores et al. (2004) classify a man as being hypogonadal if his testosterone level is less than or equal to 350 ng/dL. They report an association between incidence of hypogonadism and the incidence of ...
 . X Data Mic 6.1 Year Price ($) 2006 108 2008 110 2010 151 2012 209 2014 355 2016 609. 9:09 0 624 X Math in Context 6.1 MA th in Context 6.1: The prices of two-pack EpiPens A student constructs the ...
hospital supervisor found that the medical stuff of the laboratory, on the average, complete a certain task in 10 minutes. the times required to complete the task are approximately normally distribute...
130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Fr...
Ages Number of students 15-18 2 19-22 5 23-26 7 27-30 10 31-34 8 35-38 9 Find the relative frequency for the class with lower class limit 27 Relative Frequency =  % Give your answer as a percent, rou...
 . Variations Question 3, 9.4.6-T HW Score: 61.88%, 4.95 of 8 Part 3 of 5 points ons Points: 0.2 of 1 Save Words were displayed on a computer screen with background colors of red and blue. Results fr...
 . Homework: Chapter 9 HW < Question 20, 9.1.75-T points O Points: 0 of 1 Save An environmental agency worries that many cars may be violating clean air emissions standards. The agency hopes to ue...
For each situation described by the statements below, what is the variable being measured, what its type (quantitative or qualitative) and what type of scale is used for its measurement? (Nominal, ord...
 . It is believed that nearsightedness affects about 13% of all children. A kindergarten has registered 154 incoming Question list K children. Complete parts a) through c). . . . a) Can the Normal mo...
In a manufacturing process, all the parts were produced on either one of two machines; Machine A or Machine B. It is known that 30% of the parts were produced on Machine A.  It has been found that 2%...
In a manufacturing process, all the parts were produced on either one of two machines; Machine A or Machine B. It is known that 30% of the parts were produced on Machine A.  It has been found that 2%...