Statistics and Probability questions and answers in March 2023 — Page 10

How to scale a graph when not starting at 0? For example, if starting from 15, can the second line be 15, but then 20 is on seventh line, 25 on 12th line and so on. Or is that no accurate scaling, and...
Please can the following calculation be done with screenshots on excel so that I can practice on my own  . Please calculate the z-score for IQ scores with a mean of 100, standard deviation of 15 and ...
As the marketing manager of XY Gaming Online (Pty) Ltd, you have been asked to   determine the relationship between the amount spent on marketing in relation to the   expected number of new custo...
Explain or Discuss: Use the GSS2016 data set to complete the following exercises that generate a categorical variable out of a continuous variable. a.Generate a table of how many children a respondent...
               . A decision maker faced with four decision alternatives and four states of nature develops the following profit pavoff table. _ _ States of Nature Densron Alternative —:iii- ...
A hypothesis test is carried out, and the resulting p-value is determined to be 0.02.The significance level alpha is set at 0.01.What can we say about the null hypothesis? A)We reject the null hypothe...
An agricultural researcher plants 25 plots with a new variety of yellow corn. Assume that the yield per acre for the new variety of yellow corn follows a Normal distribution with mean (μ) and standar...
 . Part (b) 0.0/6.0 points (graded) Now, find the number of significantly associated genes using the Holm-Bonferroni and Benjamini-Hochberg corrections to the p-values. How many genes are significant...
 . The specifications for a certain kind of metal strap call for a mean break strength of 18,500 pounds. From a random sample of six such metal straps, the data produces a mean of 17,848 pounds with ...
Hello tutors, can you please help me fill in the blanks for the following?   Suppose that 𝑋 1 ,𝑋 2 ,...,𝑋 200 is a set of independent and identically distributed Gamma random variables with...
 . A researcher asks if people score higher or lower on a questionnaire measuring their emotional well-being when they are exposed to much sunshine compared to when they're exposed to little sunshine...
 . 4. Consider a Markov chain with the following probability transition matrix 0 01 1 0 0 0 1 0 (a) Sketch the state transition diagram 3 points (b) Under what condition the above Markov chain is a s...
The table below shows the political affiliation of 1000 randomly selected American voters and their positions on the school of choice program:                                       ...
please answer these questions  . Euler Paths and Circuits Worksheet 1. In the graph below, the vertices represent cities. Edges indicate a direct bus route between cities. B F H a. How many vertices ...
     . Math 1103 Exam 1 Spring 2023 c) Would selecting a bottle that has 34 ounces of soda be unusual? Explain. (5 pts) () 2:58 / 3:35 CC 1x. Math 1103 Exam 1 Spring 2023 i 24. The volumes of soda ...
I don't need help with any of these questions i just need to know which ones are t Tests for Single Samples and which ones are for dependent means  . Set II 13. In each of the following studies, a si...
1. A data set of 50 comprehension scores (named Comprehension Score) called Chapter 4 Data Set 1 is available in Appendix C of your textbook and on the website. Use SPSS to answer the following questi...
In 2017, 16% of the United States population were people over 65.  A researcher plans to use a sample of n = 1500 people to determine whether the population distribution has changed during t...
The Rolling Stones, a rock group formed in the 1960s, have toured extensively in support of new albums.  Pollstar  has collected data on earnings from the Stones' North American tours. For 40 rand...
An oil company purchased an option on Land in Alaska. Preliminary...   An oil company purchased an option on Land in Alaska. Preliminary geologic studies assigned the following prior probabilities: P...
The manager of Tile Central believes that the Virginia store is more profitable, in terms of weekly profit per full-time employee, than the Clayfield store. Random samples of size 15 and 10 accounting...
Watch: https://www.youtube.com/watch?v=1XtZXulSIMY Read: 2023 Instructions and Rubric MTH315 Project #1.pdf ANALYZE :  2023 Data Set on Death PMI MTH315 Project #1.xlsx   MTH 315 Project #1 Data Ana...
Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 66 cookies and finds that the number of chocolate chips per cookie in the ...
 . A newspaper surveyed its subscribers as to which section of the paper they read first. The results are listed below. Section Percent Front page 18.3 Sports 25.2 Business 13.9 Comics 22.1 Horoscope...
1. Using the website recommended in the explainer video, look up the closing prices of the last twenty (20) trading sessions for the following stocks: https://vimeo.com/417649782  - APPLE - (APPL)  ...
I attached the combined arrest data .xlsx . . t l ,. StatCrunch. Here Is a Video reminding you how to do that. ' 6. Create a conclusion statement indicating your result based on the original claim....
 . A biologist is studying rainbow trout that live in a certain river and she estimates their mean length to be 570 millimeters. Assume that the lengths of these rainbow trout are normally distribute...
 . 11. Consider the following group of histograms and boxplots. Each boxplot corresponds to one histogram. Match the boxplots to the histograms AND explain how you made your choices (1 point). 10- Fr...
Stats 10 homework 4 Research done in 2013 found that only 48% of a social media site users reported getting their news about world events on this site. A 2018 poll of 3625 randomly selected users of t...
1. If, in a sample of n=171 selected from a right​-skewed population, X=65 and S=22​, would you use the t test to test the null hypothesis H0: μ=60​?   Choose the correct answer below. A. ​...
 . STATS 413: Applied Regression Analysis Winter 2023 Homework 4 Due March 16 at 11:59 PM Problem 1 The first part of our course focused, in part, on the theoretical underpinnings of the standard err...
    Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate: (a) find the critical value tα/2​, ​(b) find the critical value zα/2​, or​ (c) st...
Please answer using R  . Question 1 (3 pts) Set your working directory using Session -> Set Working Directory -> To Source File. Consider sampling n pairs (Y;, X;) from a very large population ...
  Note: solution needs to be in R. 1. GWS is a company that markets outboard motorboats directly to consumers for recreational use. Recently, they've been developing a project they think has a lot of...
Initial Revision HighTech 33.93 7.14 No 18.68 -26.39 No 2.42 3.13 No 6.29 -46.15 Yes 0 -12.5 No 2.73 0 Yes 14.43 0 Yes 0 -21.74 No 0 -17.65 No 0 -5.88 No 1.22 -5.26 No 11.11 7.14 No 7.95 4.76 No 13.46...
 . 4. In a good weather year the number of storms is Poisson distributed with mean 1; in a bad year it is Poisson distributed with mean 3. Suppose that any year's weather conditions depends on past...
I need help with the following:   generate a scenario that would require the use of a DEPENDENT samples t-test (paired t-test), then create a research question and matching hypothesis, generate fake/...
5. 7. 9.  . In analyzing the city and highway fuel efficiencies of many cars and trucks, the mean difference in fuel efficiencies for the 607 vehicles was 7.47 mpg with a standard deviation of 2.42 m...
 . To build more intuition for heteroskedasticity-consistent standard errors, we will illustrate parallels between the use of (i) heteroskedasticity-consistent standard errors versus standard errors ...
I got 0.362. Am i right? If not, Please explain step by step. Thank you.. From a survey of 214 McMaster students, you find that 45% take the bus to McMaster everyday. Construct an approximate 99% conf...
Please show me the answer in a clear format.. Exercise 1: You are now curious to know if on average Venmo transactions between young adults are smaller than the ones between middle-aged adults. With t...
Suppose that  based on a survey conducted in BC and Ontario, 61% in BC and 54% in Ontario support the idea of carbon pricing. Suppose also that the sample sizes in BC and Ontario are 550 and 407, res...
The owners of an e-business have been successful in selling fashion products but are now venturing into another domain. Knowing that the impact of advertising on profit cannot be overemphasized, they ...
help pls. im not sure if my answers are correct. A study finds that approximately 1 out of every 10 Canadians do not take their prescription medication because they cannot afford the cost (known as co...
hello can you please help me. A dentist wondered if his appointments were distributed evenly from Monday to Friday each week. He took a random sample of 500 appointments and recorded which day of the ...
hello pls help thanks a lot. An HR administrator wishes to know the proportion of employees that are currently using a very costly benefit to determine if it is still considered valuable by the staff....
  Luego de haber realizado las lecturas e investigación sobre las Estimación de parámetros e intervalos de confianza, conteste las siguientes preguntas: ¿Cuál es la relación entre el tamaño de...
 . AutoSave OFF A A CGP ... w- Team Assignment - Saved to my Mac Home Insert Draw Design Layout References Mailings Review View Tell me Comments Editing Share Calibri (Bo... v 14 A" A Aav Ap EV ...
Q1: A. State the null and alternative hypotheses for the Test for Association in words. B. Calculate the expected count for each of the four cells in the table of counts. Remember, expected counts are...
The following is to be performed in R. The Baker's Inn is a small chain of restaurants in the New England area, that, in addition to accepting reservations, allow patrons to reserve an event space for...
i badly needed help asap pls ty. Suppose annual salaries of pharmacists are normally distributed with the middle 96% of pharmacists earning between $83,960.00 and $111,840.00. I Standard Normal Distri...
A regression analysis of Time against a dependent variable resulted in a Durbin-Watson coefficient of 1.42 for a sample size of 25. Conduct a Positive Autocorrelation test for a significance level of ...
The following data represent exam scores in a statistics class taught using traditional lecture and a class taught using a "flipped" classroom. Complete parts (a) through (c) below. Traditional: 72.5?...
Identify the independent and dependent variables in each of the studies below.   12. Childhood father absence and reproductive strategies adopted in adulthood 13. Time estimation improves with practi...
destion 21 of 23 A DOXplot for a set of data is shown below. 0 / 1.52 * * * 500 520 540 560 580 600 Part 1 X Your answer is incorrect. (a) Indicate whether the distribution of the data appears to be s...
Identify the independent and dependent variables in each of the studies below. 17. The relationship between childcare provider and aggressive tendencies in adolescence 18. Intensity of auditory stimul...
   . 1. Endure and Survive is a reality competition that involves survival games. One of the games involves contestants completing a timed run of an obstacle course. All contestants failing to compl...
number 2 is the question I need help with . er beneficiary (if she dies after 1 year, her family gets nothing since it's only a one-year term policy). According to the U.S. Centers for Disease Contro...
 . (5 marks) Numerical Answer Only Enter the numerical value only for the correct answer in the blank box. If a decimal point appears, round it to four decimal places. If the answer is 25.22584%, ent...
   . The Crown Bottling Company hasjust installed a new bottling process that will fill 16—ounce bottles ofthe popular Crown Classic Cola soft drink. Both oyerfilling and underfilling bottles are ...
In December​ 2018, the average price of regular unleaded gasoline excluding taxes in the United States was ​$3.06 per gallon. Assume that the standard deviation price per gallon is ​$0.09 per ga...
 . Consider the e—billing case. The mean and the standard deviation ofthe sample of n = 65 payment times are :E' =18.9080 and s = 3.9533. Test H9: it = 19.4 versus Hg: it < 19.4 by setting dequa...
 . (5 marks) Numerical Answer Only Enter the numerical value only_ for the correct answer in the blank box. If a decimal point appears, round it to four decimal places the answer is 25.22584%, enter ...
I am needing assistance with knowing whether or not assumptions have been met. I am also hoping I created the table correctly in JASP. The hypothesis was whether or not there is a significant or not s...
 . 4. In the Spring survey, students were asked: o On a scale of 1 to 10, how safe did you feel doing "normal" activities such as grocery shopping BEFORE getting your ISovid vaccine? o [in a s...
 . (1:) Suppose that Crown Bottling Company decides to use a level of significance of 0': 0.01, and suppose a random sample of 34 bottle fills is obtained from a test run of the filler. For each ofth...
Data was gathered showing the average annual salary ($1,000s) and the average retirement age for a variety of jobs. Job Average Annual Salary ($1,000s) Average Retirement Age (years) Art directors 81 ...
Consider the partial output below from a regression analysis relating the variables below:   y = product supply (in thousands of units) x = unit price (in thousands of dollars)     df SS Regression...
 . Suppose we toss a two-sided coin (H on one side and T on the other side) n = 3701 times. In any given toss, the probability the coin comes up His p = P(H) = 0.73. Each time the coin comes up H we ...
 . The formula for the slope and y-intercept of the regression line are given below. Sy - bo = y - b,x SX. Fill in the missing information in the table below. A X Sx KI Sy y = bo + bix 35 2 15 9 - 0....
Suppose a jar contains 10 red marbles and 39 blue marbles. If you close your eyes, reach in the jar and pull out a marble, and then reach in again and pull out another marble (without replacing the fi...
question1   Note to Student: Some of the exercises that follow ask you to use the p-value approach and others ask you to use the critical value approach. Both methods will provide the same hypothesis...
   . Recall that "very satisfied" customers give the XYZ—Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ—Box wishes to use the random sampl...
 . Fill in the ANOVA table. Source of Variation Sum of Squares Degrees of Freedom Mean Squares F-Test Statistic Treatment 410 2 Error 6941 23 Total Complete the ANOVA table by filling in the missing ...
 . Sakai @ UNC-Chapel Hill : ECO x Part IIIB: Signaling Model; HC a X Part IIIA: Human Capital Models X Homework03.pdf X G Schooling Model and Ability Bic X + C production-gradescope-uploads.s3-us-we...
 . An article in Computers & Electrical Engineering, "Parallel simulation of cellular neural networks" (1996, Vol. 22, pp. 61-84) considered the speed-up of cellular neural networks (CN...
 . B Quizzes... B G G G Q Your quiz has been submitted successfully. C Question 1 1.6 / 2 points According to a Bureau of Labor Statistics, a worker in the U.S. spends on average 528 minutes a day on...
1) The basketball team at North Snowshoe High is in trouble. Two of their players have just fouled out on technicals, and due to the flu the coach only has 4 players to choose from: two forwards, one ...
1) Suppose that two fair six-sided dice are tossed simultaneously, and the sum of the two faces facing upward is recorded. Determine what the theoretical probability distribution is using the followin...
 . Young's modulus is a quantitative measure of stiffness of an elastic material. Suppose that for metal sheets of a particular type, its mean value and standard deviation are 75 GPa and 2 GPa, respe...
 . The following data represent the commute time (in minutes) x and a score on a well-being survey y. The equation of the least-squares regression line is y = - 0.0468x + 68.9967 and the standard err...
Q4:   Q5:   Q6:      . The comparative boxplot (see below) of gasoline vapor coefficients for vehicles in Detroit appeared in the article "Receptor Modeling Approach to VOC Emission Inventor...
 . Question 3 (2 points) Saved The average amount of corn yield is normally distributed with a mean of 168.7 bushels of corn per acre, with a standard deviation of 27 bushels of corn. In an agricultu...
I'm looking for help determining the value of land only. I'm including all documentation I've gotten thus far. Can anyone help?  . Region State County Median Listing Price Median Sq. Ft. Random Mount...
Using excel, make a histogram using the data in the frequency table below. The -1 represents missing data.   Number of People in Household Frequency -1 33 1 1649 2 3723 3 2191 4 1743 5 1209 6 809 7 5...
 . Researchers conducted a study on using a chief executive officer's facial structure to predict a firm's financial performance. The facial width-to-height ratio (WHR) for each in a sample of 56 CEO...
6.5. Problem 6.5 (Video 5.1 - 5.4, Quick Calculations) For each of the scenarios below, determine the requested quantities. (You should be able to do this without any long calculations or integration....
A dataset contains a number of ties; regardless, the researcher decided to proceed with the sign test. Would the researcher's decision to proceed with the sign test anyway affect the probability of a ...
The obtained p value of a one-tailed binomial distribution is p < .001 .The alpha is set at .05 .   (a) Will the null hypothesis(H 0 ) be rejected or retained? (b) Why should researchers should th...
 . Which of the following clustering analysis methods requires a good working knowledge of the underlying operation problem? 0 Centroid clustering O Connectivity clustering 0 Density clustering 0 Dis...
You roll two fair dice, a green one and a red one. Keep your answers in fraction form. The answer will provide the /. So if you answer is 1/4. Please type in 1 before the / and 4 after the /.   Pleas...
 . 7-1 Discussion: Big Data Analysis - The importance of big data doesn't revolve around how much data you have, but what you do with it. You can take data from any source and analyze it to find answ...
 . The marital status distribution of the U.S. male population, age 15 and older, is as shown below. Marital Status Percent never married 31.3 married 56.1 widowed 2.5 divorced/separated 10.1 Suppose...
Use the image above to answer the following questions a. With regard to the critical lures, what percentage of the critical lures were classified as "surely old"?   b. What percentage of the partici...
        This is a two part question. In order to solve Task 3, you must first solve Task 2. . Task 3 Continuation of Task 2. An alternative representation of the data used in Task 1 is to use log...
in a study following individuals taking prednisone to treat various conditions over a 12-month period of time, a group of 12 individuals experiences fat redistribution. Assuming the individuals develo...
A case-control study is conducted to assess the relationship between heavy alcohol use during the first trimester of pregnancy and miscarriage. Sixty women who suffered miscarriage are enrolled. Each ...
The obtained p value of a one-tailed binomial distribution is .067. The alpha is set at .05 .   (a) Will the null hypothesis(H 0 ) be rejected or retained?   (b) What is the probability that your de...
The number of faulty units in a pack of a particular product is known to be normally distributed with mean 10 and variance 25. What proportion is expected to contain x faulty units, where x is (i) les...
It is established by the production manager of a manufacturing company that 2 out of every 20 units of a particular product are faulty. In a particular production hour, 8 units of the products were pr...
Set of injuries at the clinic-how would you organize the data & what type of graph would you use to display the data? What type of graph would you use to display the organized data from each frequ...
Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy...
question1: Introduction: Data Description and Research Hypothesis How to write a introduction about following? Salary and Years of Experience Description: The following data set contains the salary an...
Note: Please check example attached my picture thank you tutor but one curve creat the drawing     PERFORMANCE TASK. INDIVIDUAL: FOR ANSWERING ALL THE QUESTIONS DRAW/SHOW YOUR GRAPH. PUT YOUR ANSWE...
When comparing two parallel box plots, for example one with max temp of 1 city, and other box plot with another city: 1. What would you use describe one boxplot as being 'stronger' than the other? Eg....
Please explain step by step, Thank you 7) A researcher wishes to test the effectiveness of a flu vaccination. 150 people are vaccinated, 180 people are vaccinated with a placebo, and 100 people are no...
 . The (cumulative) distribution function of X is given below: for * < -1; Fx(@) = for -1<xx1; for r >1. (a) Determine the pdf for X. (b) Determine the value of the constant k. (c) Determine...
 . The random variable X has the probability function shown in Figure 1. (a) Determine if the random variable X is a discrete, continuous or mixed random variable. Justify your answer. (b) Deduce the...
number 9.25 for a, b, and c. as "low" or "high"), altitude (x1 = hundreds of where meters), and lateral distance (x2 = hundreds of if hired meters) for each of 464 helicopter overf...
 . Melanoma is a rare form of skin cancer that accounts for the great majority of skin cancer fatalities. Some body parts are regularly more exposed to sun than others. A random sample of 310 women d...
 . AP Statistics Page 1 of 4 Assignment: Inference for the Least-Squares Line 1. The following data set contains the number of seats and the average flight-length for 17 aircraft. This data appeared ...
 . 5. A hotel wants to know if there's a relationship between gender and the way customers make room reservations. A manager takes a random sample of 160 reservations. She records whether they were m...
1. 2. 3. 4.  . Suppose that there are 34 bears in a forest, 27 whose home has been destroyed by local deforestation projects. If you select a simple random sample of 12 bears l from the forest, what ...
 . AP Statistics Page 7 of 8 Exam: Semester 1 Exam User Name:_ Instructor: Date: print clearly) 5. Researchers have developed a new computer-based self-paced course to teach algebra to students of va...
D Question 9 1 pts Five percent of the customers who visit a website complete a product purchase. If one considers just the set of customers who completed the project purchase at the website, 80% read...
Thinking about what makes for a good test hypothesis, which of the following is the best hypothesis?   A) Sending targeted emails will be more effective than non-targeted emails because of personaliz...
Load the SLIL data from the car package and attach the data frame to the search path. Look up the description of the SLID data in the help file. library (car) data (SLID) attach (SLID) ?SLID In the fo...
n the population, New Yorkers have an average of 2 pets in their homes, with a standard deviation of 1. I am interested in evaluating whether or not medical doctors differ from the population in regar...
 . Describe the sampling distribution of p. Assume the size of the population is 30,000. n = 1400, p = 0.742 . . . Describe the shape of the sampling distribution of p. Choose the correct answer belo...
Q1: n a test of the effectiveness of garlic for lowering​ cholesterol, 45 subjects were treated with garlic in a processed tablet form. Cholesterol levels were measured before and after the treatmen...
 . SCENARIO The growth rate of a certain population of fish is known to have the following two properties: (1) there is a minimal viable population, M, and if the population is below M, the populatio...
 . 3. You are interested in whether U.S.-manufactured cars are more fuel efficient than foreign cars. In particular, you are interested in highway MPG. You collect a sample of data, which gives you t...
 . Current Attempt in Progress Find the indicated confidence interval. Assume the standard error comes from a bootstrap distribution that is approximately normally distributed. A 90 % confidence inte...
(a) Is there sufficient evidence that individuals walk at different speeds depending on whether they are departing or arriving at the airport? (b) Construct and interpret a 95% confidence interval. (c...
1. 2. 3. 4. 5.  . Suppose that there are 34 bears in a forest, 27 whose home has been destroyed by local deforestation projects. If you select a simple random sample of 12 bears from the forest, what...
I need help answering these questions, I provided the article for these questions.   What were the primary descriptive statistics they mentioned which are familiar?  What were any unfamiliar ones? W...
According to an article published in the journal Scientific Reports the mean length of growing season on Niwot Ridge, CO is 175 days with a standard deviation of 11 days. Niwot Ridge is located just b...
 . O X Quiz 5 : 2023SP-ECON-1100-103 X + Sign in . . . C @ https://umsystem.instructure.com/courses/149132/quizzes/407847 Incorrect 0 / 1 pts Question 1 2023 Spring Semester Account Home Dashboard As...
A car dealership is offering an interesting incentive in order to get people to come and test drive its new sports cars. Everyone who agrees to a test drive gets to choose a key. There are 75 car keys...
 . Q3 XOR 1 Point True or false. A deep neural network (i.e. one with many layers) is unable to learn the XOR pattern. O True O False. Q1 Neural Networrks 2 Points Select all options that apply. Sele...
 . A Store—It—AII storage facility requires users to enter a four digit code, using numbers 0—9, to get through the gate. You need to get a box of winter clothes from your storage container, bu...
Privacy is a concern for many users of the internet. One survey showed that 59% of internet users are somewhat concerned about the confidentiality of their e-mail. Based on this information, what is t...
A customer satisfaction study is conducted for the two leading home improvement stores: Home Pro and Index Mart. A group of people chosen randomly is asked to rate Home Pro's products and services on ...
Problem 5: Suppose x1 , ... , xn is a random sample generated from the normal distribution with mean μ and variance σ 2=1. 1. what is the probability density of x1+ x2? 2. Find the maximum likelihoo...
Q1-A study of 420,000 cell phone users found that 0.0331​% of them developed cancer of the brain or nervous system. Prior to this study of cell phone​ use, the rate of such cancer was found to be ...
. In a series of 30 coin tosses, what is the most likely number of heads? (Show your multiplication) 3. In the general population, IQ scores have a mean of 100, a standard deviation of 15, and a norma...
Determining the relationship between spirituality and perceptions of care in nursing students: A cross‐sectional study   I need to know what type of statistical test relates to this title? exa...
 . Show that the following distributions can or otherwise cannot be written as f (y 9) = exp [a(y)b(9) + (3(6) + d(y)]. i.e show that the distributions belong or do not belong to the exponential fami...
 . 5. Show that the stationary probabilities for the Markov chain having transition probabilities Pi,j are also the stationary probabilities for the Markov chain whose transition probabilities Qi,; a...
n order to provide early diagnosis and therefore delay or prevent serious, lifelong health problems related to cysc fibrosis (CF), all newborns in the United States are screened for CF with a blood te...
A cellphone company is investigating the mean number of contacts persons have in the cellphones. The data below shows the responses from 51 (fifty-one) randomly selected cellphone users.    88   ...
Target Compliance   a) Identify the scenarios that require the use of forecasts   b) Analyze the different forecasting methods of qualitative models, time series models and causal models. Introducti...
 . Problem 1. 20 points Consider the joint density function fxx(x, y) = c(y -x) , 0<x<y-1. - a) [5 points] Find c. - b) [5 points] Find P (Y - X > ;). - c) [5 points] Find E[Y - X]. - d) [5 ...
I want accurate answer with proper explanation please I'll upvote show all your work no handwriting . You use two decks of cards for a game. Deck A Lose Take Take an a 2 Turn Tokens Extra Turn 5 card...
 . Let X1, X2, ..., Xn be iid from N (u, o). n It is known that that $2 = - 1 (X; - X)2 is an unbiased estimator of o2, and that Var [S2] = 20 n - 1 i=1 n - 1 n Let &? = ![(- x) 2 _ n - 1 $2 be a...
Can someone please explain how to get E[XY]? I see that the solution is 0.9, but I do not understand how we got that.. 2. Suppose X and Y are discrete random variables with the following joint p.m.f. ...
The problem is the following:   I understand I have to calculate the maximum for variables b and c, which renders as this:   However, when I combine these two, the explanation that was given to me w...
about 3.6%of all jonathan apples have bitter pit(a disease of apples)what is the proabilty that....A)the 3rd apple you choose has a bitter pit?B)the 5th spplet you choose has a bitter pit?C)the 12th a...
Question 1:   Compute the mean and standard deviation of the random variable with the given discrete probability distribution. x Px −6 0.17 −2 0.07 2 0.24 4 0.28 6 0.24 (a) Find the mean. Round t...
25. FILE IPO. One of the theories regarding initial public offering (IPO) pricing is that the initial return (the percentage change from offer to open price) on an IPO depends on the price revision (t...
Business Statistics. EXERCISES 15.4 Mechanics 45. Using 20 observations, the multiple regression model y = Bo+ BIX1 + B2X2 + & was estimated. A portion of the regression results is as follows: df ...
Answer the questions above using R coding language. Simple Random Samples vs Stratified Samples: Name Charles Heath Daria Jack Joe Nick Spencer Ryan Nigel Rayna ID 2 3 4 5 6 7 8 9 10 Major E E A E E E...
Business Statistics. EXERCISES 15.3 Mechanics 35. In a simple linear regression based on 30 observations, the following information is provided: y = -6.92 + 1.35x and Se = 2.78. Also, se(y ) evaluated...
Study Questions   The 2018 General Social Survey contains information on the number of years of education that respondents have completed. The data are presented below. (Note: throughout the exercise...
 . Tabulate all possible samples of two students from the population together with their sample means.. CSPM 264 01 BUSINESS & ECONOMIC STAT 8:00 AM 9:40 AM MW ST 118 LIND D RANDOM CLASS RANDOM C...
Please answer all the questions!!! 10.    11.  12.  13.    14.   . According to one study, brain weights of men are normally distributed with a mean of 1.10 kg and a standard deviation of 0.14...
At a Tasty D-Lite, there are 7 different toppings a customer can select for their frozen yogurt. How many ways can a customer choose 2 toppings?    7 factorial divided by the quantity 2 factorial ti...
Question 2  Soit le tableau suivant:                                                                                  Satisfaction au travail           ...
 . Let X and Y be random vectors with known means and covariance matrices. Do not assume zero means. Find the best purely linear estimate of X based on Y; i.e., find the matrix A that minimizes E[(|X...
Amari is playing a game with a standard deck of cards. Amari selects one card and then replaces it in the deck.  Part A: What is the theoretical probability that Amari draws a heart? (5 points)    ...
Henry's Hoagies collected data from a random sample of customer's orders. It calculated the P(mayonnaise) = 0.74, P(mustard) = 0.62, and P(mayonnaise or mustard) = 0.90. What is the P(mayonnaise and m...
A 2019 Gallup Poll asked a national random sample of 511 adult men to state their current weight. The mean weight in the sample was ¯=195. We will treat these data as an SRS from a Normally distribut...
In 2022, a study at Petit Pediatrics found that 20% of its patients were allergic to pollen. The study also showed that 20% of patients who were allergic to pollen tested negative, while 5% of the pat...
The relationships between nurses' work environments and emotional exhaustion, job satisfaction, and intent to leave among nurses in Saudi Arabia   I need to know, based on these variables, what type ...
The manager at Wide Awake Café surveyed a random sample of customers on their coffee orders. The table shows the data gathered by the manager of the coffee and milk type ordered by the customer.   ?...
Suppose we hypothesized that a respondent's occupational prestige score predicts their spouse's occupational prestige score. Using the above table from SPSS based on an analysis of GSS data, is there ...
 . D. Compute a point esumate of the target parameter. (Round to three decimal places as needed.) c. What is the problem with using the normal (z) statistic to find a confidence interval for the targ...
 . Suppose Z ~ N(0, 1). Which of the following code gives you the central limits a and b such that P(a < Z < b) = 0.95? 0.4 0.3 0.2 0.95 0.1 0.025 0.0 0.025 a b x A. a <- qnorm(0. 025) b &lt...
LINK FOR DATASET: https://docs.google.com/spreadsheets/d/1DYbeD7Ww3hU7lC32Lk-zHaby0mxe0-vr/edit?usp=sharing&ouid=109903668686923274818&rtpof=true&sd=true   Overview We will analyze (ficti...
 . According to the CLT, the sampling distribution of the mean is X ~ N(MX = 1, Oz n Suppose we want to standardize X. Which of the following is the equation for standardizing X? A. X - H B. X - ul 0...
Introduction Every student has a different experience in their class.  At the same time, students have a lot in common.  For instance, most students say they feel really confused sometimes, but, ...
 . Using a TI-84 Plus calculator, find the area under the standard normal curve to the left of the following z-values. Round the answers to at least four decimal places. Part 1 of 2 (a) Find the area...
PLEASE stay for a few minutes after for follow-up questions.. Using a TI-84 Plus calculator, find the area under the standard normal curve to the left of the following z-values. Round the answers to a...
answer only   . Suppose each license plate in a certain state has 9 one digit, followed by four letters, followed by one digit. The letters Rosand X and the digit 0 are not used. So, there are 22 le...
 . Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 72 and a standard deviation of 9. Use the TI-84 PLUS calculator to answer the following. Round t...
 . Exam grades: Scores on a statistics final in a large class were normally distributed with a mean of 72 and a standard deviation of 9. Use the TI-84 PLUS calculator to answer the following. Round t...
answer only need asap  . 1 2 3 4 5 6 7 8 9 10 exactly 2 successes? A binomial experiment with probability of success p = 0.5 and n = 8 trials is conducted. What is the probability that the experiment...
Use the excel spreadhseet to answer the questions  The excel data can be accessed through this link : https://1drv.ms/x/s!AoKasatN5SDBkGB4ihb67WoGMy7Q   1. What is the correlation between Distance f...
The random variable X takes on three values, -1, 0, and 1 with probabilities (1-a)/2, (a+b)/2, and (1-b)/2, respectively. We take a sample of size n=10, and we obtain the following values: -1, 0, 1, 1...
 . Question 3 (15 marks) Round off your answers to three (3) decimal places A call centre receives an average of six (6) calls per given hour. a) What is the probability that no calls will arrive in ...
 . 2. Consider the savings function savings = Bo + Biincome + u, u = EVincome, where e is a random variable with E() = 0 and var(e) = 02. Assume that e is independent of income. (1) Show that E(ulinc...
 . 6.9-6.11A General Multiplication Rule Activity Name: Rules and Definitions: Conditional Probability: P(A|B) means "the probability of A given B". Two Events are Independent If: P(A and B...
 . 4) A researcher wishes to determine whether the blood pressure of vegetarians is, On average, lower than the blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians a...
 . Problem 'I. The leading brewery on the West Coast (labeled A) has hired an OR analyst to analyze its market position. It is particularly concerned about its major competitor (labeled B). The analy...
Hey there i'm having trouble finding the answers to these in R-Studio, can you help? In the table attached, you can find data consisting of a measurement of bone density (y) and age in years (x) for e...
 . Suppose X1, X2. ..., X,, is a random sample from a uniform distribution, Uniform(-0, 0). a) Show that {X(1) = mini=1..,n Xi, A(m) = maxi=1...,n X) is a sufficient statistics. b) Find the joint pro...
 . Q4. Descriptive statistics: Central tenden s and variability (10 points) 04A. Select the best central tendency e variable " n explain why you selected this measure and calculate it. [2 points...
     . Listed below are foot lengths in inches for 11 randomly selected people taken in 1988. Find the range, variance, and ' standard deviation for the given sample data. Include appropriate units...
Consider the following sample of production volumes and total cost data for a manufacturing operation. Production Volume (units) Total Cost ($) 400 4,000 450 4,900 550 5,500 600 5,900 700 6,300 750 7,...
Someone help me please . 1. Determine the mean winnings. needed). Outcome Probability Game Dice Sum Result Type Answer Type Answer 1 Type Answer Type Answer Type Answer Type Answer 2 Type Answer Type...
please help. CENGAGE |MINDTAP Q Search this co 13.4 Practice Assignment: 13.4 Practice Assignment Score: 56.66% Save Submit Assignment for Grading Questions Exercise 13.21 Algo (Randomized Block Desig...
Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table...
A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders. In addition, the study determined that 75% of all American adult sto...
When estimating a mean, increasing sample size will cause the standard error of the mean to [ Select ] , the Margin of Error will [ Select ] and the width of the confidence interval will [ Select ] In...
A normally distributed population has a mean of 485 and a standard deviation of 161. If a sample of size 10 is taken, what is the probability the sample mean is greater than 380.4 but less than 541.1?...
A population has a mean of 159.4 and a standard deviation of 5. A sample of size 8 is taken from this population. What is the standard deviation of the sampling distribution of the mean? Enter your an...
Consider the following data on price ($) and the overall score for six stereo headphones tested by a certain magazine. The overall score is based on sound quality and effectiveness of ambient noise re...
(a) Rejection sampling with the Uniform(0,1) as the proposal (b) What are your choice of alpha and envelope e(x). Be specific (c) What is the expected proportion of candidates accepted by your algorit...
Note:- please send me answer in typed form strictly prohibited hand written solution. 16. [-/1 Points] DETAILS BBBASICSTAT8 7.3.010.5. Assume that x has a normal distribution with the specified mean a...
A study by Peter D. Hart Research Associates for the Nasdaq Stock Market revealed that 43% of all American adults are stockholders. In addition, the study determined that 75% of all American adult sto...