n a recent court case it was found that during a. Of 11 years 862 people were selected for grand jury duty and 38% of them were from the same ethnicity of people eligible for grand jury duty 80.4% weirdest ethnicity uses 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 statistics P value conclusion about the null hypothesis and final conclusion that addresses the original claim used to be Value method in the normal distribution as an approximation to the binomial distribution

3) The ages of actresses when they won an acting award is summarized by the statistics n=78, =35.6 years, and s=11.6 years. Use a 0.01 significance level to test the claim that the mean age of actresses when they win an acting award is less than 34 years.4) Trials in an experiment with a polygraph include 97 results that include 24 cases of wrong results and 73 cases of correct results. Use a 0.01 significance level to test the claim that such polygraph results are correct less than 80% of the time.5) In a manual on how to have a number one song, it is stated that a song must be no longer than 210 seconds. A simple random sample of 40 current hit songs results in a mean length of 236.5 sec and a standard deviation of 57.77 sec. Use a 0.05 significance level to test theclaim that the sample is from a population of songs with a mean greater than 210 sec. What do these results suggest about the advice given in the manual?

In a recent court case it was found that during a period of 11 years 860 people were selected for grand jury duty and 37​% of them were from the same ethnicity. Among the people eligible for grand jury​ duty, 79.3​% 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.       Question content area bottom Part 1 Which of the following is the hypothesis test to be​ conducted?   A.Upper H 0 : p not equals 0.793 Upper H 1 : p equals 0.793 H0: p≠0.793 H1: p=0.793   B.Upper H 0 : p equals 0.793 Upper H 1 : p not equals 0.793 H0: p=0.793 H1: p≠0.793   C.Upper H 0 : p equals 0.793 Upper H…

13. Are Seat Belts Effective? A simple random sample of front-seat occupants involved in car crashes is obtained. Among 2823 occupants not wearing seat belts, 31 were killed. Among 7765 occupants wearing seat belts, 16 were killed (based on data from "Who Wants Airbags?" by Meyer and Finney, Chance, Vol. 18, No. 2). We want to use a 0.05 significance level to test the claim that seat belts are effective in reducing fatalities. a. Test the claim using a hypothesis test.

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 jury​duty, 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 recent court case it was found that during a period of 11 years 868 people were selected for grand jury duty and 42​% of them were from the same ethnicity. Among the people eligible for grand jury​ duty, 80.8​% 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. Which of the following is the hypothesis test to be​ conducted? What is the test​ statistic? What is the​ P-value? What is the conclusion on the null​ hypothesis?   Does the jury selection system appear to be​ fair?

7. A simple random sample of front-seat occupants involved in a car crashes is obtained. Among 2935 occupants not wearing seat belts, 33 were killed. Among 7813 occupants wearing seat belts, 19 were killed. Use a 0.001 significance level to test the claim that seat belts are effective in reducing fatalities. Identify the null hypothesis, alternate hypothesis, test statistic, P-value, conclusion about the null hypothesis, and conclusion that addresses the original claim.

Seat Belt ProblemA random sample of car crashes is obtained. Among 2792 occupants not wearing seat belts, 33 were killed. Among 7654 occupants wearing seat belts, 18 were killed. Use a 0.01 significance level to test the claim that seat belts are effective in reducing fatalities. Consider the occupants not wearing seat belts to be population 1. State the final conclusion regarding the claim (using p-value). _____________   the HO since the p-value is  ______________  the significance level α. There is   ______________  evidence to support the claim that seat belts are effective in reducing fatalities.

A survey of 61,647 people included several questions about office relationships. Of the​ respondents,27.3​% reported that bosses scream at employees. Use a 0.05 significance level to test the claim that more than 1/5 of people say that bosses scream at employees. How is the conclusion affected after learning that the survey is an online survey in which Internet users chose whether to respond? 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 normal distribution as an approximation of the binomial distribution. Identify the null and alternative hypotheses. Choose the correct answer below.   A. H0​:p=0.2 H1​:p<0.2   B. H0​:p=0.2 H1​:p>0.2   C. H0​:p=0.2 H1​:p≠0.2   D. H0​: p=0.8 H1​: p<0.8   E. H0​: p=0.8 H1​: p≠0.8   F. H0​: p=0.8 H1​: p> 0.8   The test statistic is z= (Round to two decimal…

In a recent court case it was found that during a period of 11 years 883 people were selected for grand jury duty and 43​% of them were from the same ethnicity. Among the people eligible for grand jury​ duty, 79.4​% 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. What  is the hypothesis test to be​ conducted?