A study identified Bridgeport, Connecticut, San Jose, California, Washington, D.C., and Lexington Park, Maryland as the four U.S. cities with the highest percentage of millionaires. The following data show the following number ofmillionaires for samples of individuals from each of the four cities.MillionaireYesNoBridgeport, CT49451%%O Ho: PB #PL# PN* PW=San Jose, CA%%40260Ha:: Not all population proportions are equal.City(a) What is the estimate of the percentage of millionaires in each of these cities? (Round your answers to two decimal places.)Bridgeport, CTSan Jose, CAWashington, D.C.Lexington Park, MDH₂:: All population proportions are equal.Washington, D.C. Lexington Park, MDO Ho: At least two of the population proportions are equal.Ha:: None of the population proportions are equal.(b) Using a 0.05 level of significance, test for the equality of the population proportion of millionaires for these four cities.State the null and alternative hypotheses.O Ho: PB = PL = PN = Pw41359Find the p-value. (Round your answer to four decimal places.)p-valueO Ho: Not all population proportions are equal.Ha: PB = PL = PN = PwFind the value of the test statistic. (Round your answer to three decimal places.)39361

Answer Given,[O] CT CA DC MD TotalYes 49…

Answered: A study identified Bridgeport,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Subject: statistics
Northside High wants to estimate the number of seniors who plan to go to a 4-year college. Answer the following. (a) Which of the following surveys probably would best represent the entire population of seniors? 25 honor roll students are randomly selected from the senior class; 18 plan to go to a 4-year college. O 25 seniors are randomly selected; 13 plan to go to a 4-year college. O 25 Glee Club members are randomly selected; 16 plan to go to a 4-year college. (b) There are 550 seniors at Northside High. Using your answer from part (a), estimate the number of seniors who plan to go to a 4-year college. seniors
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The accuracy of a census report on a city in southern California was questioned by some government officials. A random sample of 1215 people living in the city was used to check the report, and the results are shown below.
A new business had the following monthly net gains: $8295 $2902 $2881 $6216 $8924 $3028 $1476 $6053 $5609 $5822 Find the median for the given sample data. A. $5,120.60 B. $5,439.00 C. $5,937.50 D. $5,689.56 E. $5,715.50
According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditures by age group. Therefore, samples of 10 consumers were selected for three age groups (1834, 35- 44, 45 and older). The annual expenditure for each person in the sample is provided in the table below. Click on the datafile logo to reference the data. DATA file 35-44 969 434 1,792 1,500 1,277 1,056 1,922 1,350 18 - 34 1,355 115 1,456 2,045 1,621 994 1,937 1,200 1,567 1,390 a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place. 18-34 35-44 45+ 1,586 1,415 45 and Older 1,135 956 400 1,374 1,244 825 763 1,192 1,305 1,510 Mean = Variance Standard Deviation b. What observations can be made based on these data? The age group that spends the least amount on cellular phone…
Social life A question posted on the gamefaqs.com web-site on August 1, 2011, asked visitors to the site, “Do you have an active social life outside the Internet?” 22% ofthe 55,581 respondents said “No” or “Not really, most ofmy personal contact is online.”a) Can this survey be used to estimate the proportion ofU.S. adults who would say they have an active sociallife outside the Internet? Why or why not?b) Can this survey be used to estimate the proportion ofvisitors to their site who would say they have an activesocial life outside the Internet? Why or why not?
A survey of a group's web habits for the past month obtained the following information.38% visited Facebook.38% visited LinkedIn.42% visited Google.23% visited Facebook and LinkedIn.24% visited Facebook and Google.22% visited LinkedIn and Google.15% visited all three sites.Find the percentage that visited none of these three sites last month. % Submit QuestionQuestion 9
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One question in the General Social Survey asks, “Do you think that it should be government’s responsibility to reduce income differences between the rich and the poor?” Those answering yes in a recent survey included 90 of the 142 respondents who called themselves “strong Democrat” in political party identification and 26 of the 102 who called themselves “strong Republican.” Question: Find the point estimate (n) of the proportion answering yes for each group. What is the point estimate for strong Democrat and strong Republicans
NBA Draft Picks. FromWikipedia’s on-line document “List of First Overall NBA Draft Picks,” we found that, since 1947, 10.4% of the number-one draft picks in the National Basketball Association have been other than U.S. nationals. a. Identify the population. b. Identify the specified attribute. c. Is the proportion 0.104 (10.4%) a population proportion or a sample proportion? Explain your answer.
In 2015, Addison Group and Kelton surveyed the work preferences and attitudes of 1081 working adults spread over three generations-Baby Boomers, Generation X, and Millennials (Society for Human Resource Management website). One question asked individuals if they would leave their current job to make more money at another job. The file Millennials contains the sample data, which is also summarized in the following table. Click on the datafile logo to reference the data. DATA file Leave Job for More Money? Yes No Baby Boomer 137 213 Generation 7.85 What is the p-value? Use Table 3 of Appendix B. The p-value is between 0.005 and 0.01 Using a 0.05 level of significance, what is your conclusion? Conclude interest in leaving job for more money is not Generation X 171 199 Millennial 175 186 Conduct a test of independence to determine whether interest in leaving a current job for more money is independent of employee generation. Compute the value of the X² test statistic (to 2 decimals). Do…

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