b) Determine the test statistic. Round to two decimals.2 =c) Find the p-value. Round to 4 decimals.P-value =d) Make a decision.Fail to reject the null hypothesisO Reject the null hypothesise) Write the conclusion.O There is sufficient evidence to support the claim that the percentage of college students whowork is different than 71%.O There is not sufficient evidence to support the claim that the percentage of college studentswho work is different than 71%. In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks thispercentage has changed since then. A survey of 110 college students reported that 91 of them work.Is there evidence to support the reasearcher's claim at the 1% significance level?a) Determine the null and alternative hypotheses.Ho: P=Ha:p Select an answer2 =b) Determine the test statistic. Round to two decimals.c) Find the p-value. Round to 4 decimals.P-value =d) Make a decision.(Put in the correct symbol and value)O Fail to reject the null hypothesisReject the null hypothesise) Write the conclusion.O There is sufficient evidence to support the claim that the percentage of college students whowork is different than 71%.

Given that Sample size n =110 Favorable cases x =91 Sample proportion p^=x/n =91/110 =0.8273…

Answered: In 2011, a U.S. Census report…

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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The nonprofit group Public Agenda conducted telephone interviews with three randomly selected groups of parents of high school children. There were 202 black parents, 202 Hispanic parents, and 201 white parents. One question asked, "Are the high schools in your state doing an excellent, good, fair, or poor job, or don't you know enough to say?" Here are the survey results: The group used a chi-square test for homogeneity to assess differences between the three parent groups. Do these data provide convincing evidence that the distributions of opinion about high schools differ for the three populations of parents at the α = 0.05 level? Color Excellent Good Fair Poor Don't know Total Black 12 69 75 24 22 202 Survey Type Hispanic White Total 34 22 68 55 81 205 61 60 196 24 24 72 28 14 64 202 201 605 Which of the following is false? The hypotheses are Ho: There is no difference in the distribution of opinions about how high schools are doing among black, Hispanic, and white parents. Ha:…
An online book store wants to determine if there is an association between coupon redemption and gender. After a special coupon broadcast to its reward members, the following data on coupon redemption at checkout were collected. Yes No Total Male 66(76.17) 66(55.83) 132 Female 125(114.83) 74(84.17) 199 Total 191 140 331 The correct value of the test statistic is Chi-square = 5.340 Chi-square = 8.429 Chi-square = 0.839 Chi-square = 45.556
In Exercises, hypothesis tests are proposed. For each hypothesis test, a.determine the null hypothesis.b.determine the alternative hypothesis.c.classify the hypothesis test as two tailed, left tailed, or right tailed. Serving Time. According to the Bureau of Crime Statistics and Research of Australia, as reported on Lawlink, the mean length of imprisonment for motor-vehicle-theft offenders in Australia is 16.7 months. You want to perform a hypothesis test to decide whether the mean length of imprisonment for motor-vehicle-theft offenders in Sydney differs from thenational mean in Australia.
please answer and explain parts d and e
A national study report indicated that 20,5% of Americans were identified as having medical bill financial issues. What if a news organization randomly sampled 400 Americans from 10 cities and found that 95 reported having such difficulty. A test was done to investigate whether the problem is MORE SEVERE among these cities. What is the value of the TEST STATISTIC (T.S.)? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a -0.787 1.610 2.479 d 0.787
State whether each situation has independent or paired (dependent) samples. a. A researcher wants to compare the salaries of men and women. She finds a random sample of 80 men and 80 women, and measures their salaries. b. A researcher wants to know whether professors with tenure have fewer office hours than professors without tenure. She observes the number of office hours for professors with and without tenure. a. Choose the correct answer below. O Independent samples O Paired (dependent) samples b. Choose the correct answer below. O Independent samples Paired (dependent) samples
I am being told that the sample size answer of 384 given to me was incorrect. Is there any way this was miscalculated?
A marketing agency wanted to determine if a new commercial changed people's opinion about a company. They recruited n=30 participants to watch the commercial. First, everyone was givien a survey to determine their attitudes toward the company. Then, everyone watched the new commercial. Finally, they were given the same survey again and asked about their attitudes toward the comapny after seeing the commercial. The agency wanted to see if attitudes were changed by the commercial. What statistical test should they use?
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