Problem 7 In a hypothesis test with hypotheses Ho :p < 0.58 and H1 :p > 0.58, a random sample of size 1143 produced a sample proportionof 0.5985. The test is to be made at the 2.5% significance level.Should you reject or fail to reject the null hypothesis in this test?fail to rejectrejecteTextbook and Media

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Answered: In a hypothesis test with hypotheses Ho…

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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If, in a one-tail hypothesis test where H0 is only rejected in the upper tail, the p-value=0.2047 and ZSTAT=+0.82, what is the statistical decision if the null hypothesis is tested at the 0.07 level of significance? What is the statistical decision?
For a one-tailed test (upper tail) with a sample size of 900, the null hypothesis will be rejected at the .05 level of significance if the test statistic is _____. Select one: A. less than -1.96 B. less than 1.645 C. less than or equal to -1.645 D. greater than or equal to 1.645
In a certain city, the population mean commute time to work was reported as 30 minutes. The director of human resources for a certain company in the city claimed the mean commute time for the company’s employees was greater than 30 minutes. The director surveyed 35 randomly selected employees and found that their mean commute time was 31.4 minutes. With all conditions for inference met, a hypothesis test conducted at the significance level α=0.05α=0.05 resulted in a pp-value of 0.381. Which of the following is an appropriate conclusion? The director has convincing statistical evidence to conclude that the population mean commute time is greater than 30 minutes. A The director has convincing statistical evidence to conclude that the population mean commute time is less than 30 minutes. B The director has convincing statistical evidence to conclude that the population mean commute time is 31.4 minutes. C The director does not have convincing…
In a certain city, the population mean commute time to work was reported as 30 minutes. The director of human resources for a certain company in the city claimed the mean commute time for the company’s employees was greater than 30 minutes. The director surveyed 35 randomly selected employees and found that their mean commute time was 31.4 minutes. With all conditions for inference met, a hypothesis test conducted at the significance level α=0.05α=0.05 resulted in a pp-value of 0.381. Which of the following is an appropriate conclusion? The director has convincing statistical evidence to conclude that the population mean commute time is greater than 30 minutes. The director has convincing statistical evidence to conclude that the population mean commute time is less than 30 minutes. The director has convincing statistical evidence to conclude that the population mean commute time is 31.4 minutes. The director does not have convincing statistical evidence to…
#2.9 Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2026 passenger cars in a particular region, 218 had only rear license plates. Among 346 commercial trucks, 50 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.05 significance level to test that hypothesis.Test the claim using a hypothesis test. Identify the null and alternative hypotheses for this test. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate. Identify the test statistic. State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.
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A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2741 occupants not wearing seat belts, 29 were killed. Among 7694 occupants wearing seat belts, 11 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of occupants not wearing seat belts and the second sample to be the sample of occupants wearing seat belts. What are the null and alternative hypotheses for the hypothesis test? A. H0: p1=p2 H1: p1>p2 B. H0: p1=p2 H1: p1≠p2 C. H0: p1≥p2 H1: p1≠p2 D. H0: p1≤p2 H1: p1≠p2 E. H0: p1≠p2 H1: p1=p2 F. H0: p1=p2 H1: p1<p2 Identify the test statistic. z=enter your response here (Round to two decimal places as needed.) Identify the P-value. P-value=enter…
The library board of directors believes that at most half of alllibrary customers borrow ebooks, and are not willing to increase funds for ebookborrowing. A random sample of 150 customers shows that 80 of them borrowedebooks. At a 5% level of significance, perform the hypothesis test.

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In a hypothesis test with hypotheses Ho :p < 0.58 and H1 :p > 0.58, a random sample of size 1143 produced a sample proportion of 0.5985. The test is to be made at the 2.5% significance level. Should you reject or fail to reject the null hypothesis in this test? fail to reject reject