In a recent court case, it was found that during an 11-year period, 851 people were selected for grand jury duty, and 41% of them were from the same ethnicity. Among the people eligible for grand jury duty, 80.7% were of this ethnicity. Use a 0.05 significance level to test the claim that the selection process is biased against allowing this ethnicity to sit on the grand jury. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.---**What is the test statistic?**Z = [ ](Round to two decimal places as needed.)**What is the P-value?**P-value = 0.000(Round to four decimal places as needed.)

The hypotheses for the test are given below. Null hypothesis: H0: p = 0.807

Answered: In a recent court case it was found…

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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Determine the test statistic. Determine the P-value.
In a recent court case it was found that during a period of 11 years 857 people were selected for grand jury duty and 35% of them were from the same ethnicity. Among the people eligible for grand juryduty, 79.8% were of this ethnicity. Use a 0.01 significance level to test the claim that the selection process is biased against allowing this ethnicity to sit on the grand jury. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.
In a recent poll of 755 randomly selected adults, 588 said that it is morally wrong to not report all income on tax returns. Use a 0.05 significance level to test the claim that 70% of adults say that it is morally wrong to not report all income on tax returns. Identify the null hypothesis, alternative hypothesis, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Identify the correct null and alternative hypotheses. Choose the correct answer below. А. Но: р3D0.3 H,ip 0.3 С. Но: р30.7 H:p0.7 E. H;: p = 0.3 H,:p#0.3 F. Ho: p= 0.7 H: p#0.7 The P-value is (Round to four decimal places as needed.) Identify the conclusion about the null hypothesis and the final conclusion that addresses the original claim. Ho. There sufficient evidence to warrant rejection of the claim that 70% of adults say that it is morally wrong not to report all income on tax Fail to reject Reject
A company that produces cell phone batteries claims their new battery last more than 30 hours. To investigate this claim a consumer advocacy group collected the following random sample for number hours that each battery worked: 50, 40, 35, 25, 60, 45, 30, 50, 30, 10. Is there a sufficient evidence to accept the company’s claims using 0.01 significance level?
In a recent court case it was found that during a period of 11 years 888 people were selected for grand jury duty and 37% of them were from the same ethnicity. Among the people eligible for grand jury duty, 78% were of this ethnicity. Use a 0.05 significance level to test the claim that the selection process is biased against allowing this ethnicity to sit on the grand jury. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.
In a program designed to help patients stop smoking, 218 patients were given sustained care, and 82.1% of them were no longer smoking after one month. Use a 0.01 significance level to test the claim that 80% of patients stop smoking when given sustained care. Identify the null and alternative hypotheses for this test.
What is the test statistic? What is the p value?
Suppose 218 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. identify the null and alternative hypotheses for this test test statistic pvalue conclusion
A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2991 occupants not wearing seat belts, 29 were killed. Among 7745 occupants wearing seat belts, 19 were killed. Use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. Identify the test statistic.
In a recent court case it was found that during a period of 11 years 852 people were selected for grand jury duty and 36% of them were from the same ethnicity. Among the people eligible for grand juryduty, 78.9% were of this ethnicity. Use a 0.05 significance level to test the claim that the selection process is biased against allowing this ethnicity to sit on the grand jury. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution.
In a study of 1228 randomly selected medical malpractice lawsuits, it was found that 856 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that more than 50% of the medical malpractice lawsuits are dropped or dismissed.
PLEASE ONLY SELECT THE ANSWERS AS SHOWN FOR THE MULTIPLE CHOICE, SUCH AS OPTION 1, 2, ETC. 1) A genetic experiment involving peas yielded one sample of offspring consisting of 427 green peas and 127 yellow peas. Use a 0.01 significance level to test the claim that under the same circumstances, 25% of offspring peas will be yellow. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method and the normal distribution as an approximation to the binomial distribution. What are the null and alternative hypotheses? A. H0: p=0.25 H1: p<0.25 B. H0: p=0.25 H1: p>0.25 C. H0: p≠0.25 H1: p=0.25 D. H0: p=0.25 H1: p≠0.25 E. H0: p≠0.25 H1: p<0.25 F. H0: p≠0.25 H1: p>0.25 2) What is the test statistic? Z= (Round to two decimal places as needed.) 3) What is the P-value? P-value= (Round to four decimal places as needed.) 4) What is the…

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