In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6970 subjects randomly selected from an online group involved with ears. There were1285 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to thebinomial distributionIdentify the null hypothesis and alternative hypothesisOA H₂p=02H, p#02OC. Ho p 02H₁: p<0.2OE H₂ p>0.2H₁: p=02The test statistic is z=(Round to two decimal places as needed.)The P-value is(Round to three decimal places as needed.)Because the P-value isthe significance level,COB. Ho: p=02H₂:p>0.2OD. Hop#02H₁: p=0.2OF H₂ p<02H₁: p=0.2the null hypothesis. There isevidence to support the claim that the return rate is less than 20%

Given that Sample size n=6970 Favorable cases x =1285 Sample proportion p^=x/n =1285/6970 =0.1844

Answered: emer survey was e-mailed to 6970…

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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Trials in an experiment with a polygraph include 98 results that include 22 cases of wrong results and 76 cases of correct results. Use a 0.05 significance level to test the claim that such polygraph results are correct less than 80% of the time. 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. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results, Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho p= 0.20 H p#0.20 O C. Ho p=0.80 H, p#0.80 O B. H, p= 0.80 H, p> 0.80 O D. H, p= 0.20 H, p> 0.20 O E. H, p=0.80 H, p<0 80 OF. H, p= 0.20 H, p<0.20 The test statistic is z = (Round to two decimal places as needed.) The P-value is (Round to four decimal places as needed Identify the conclusion about the null hypothesis and the…
Trials in an experiment with a polygraph include 96 results that include 22 cases of wrong results and 74 cases of correct results. Use a 0.05 significance level to test the claim that such polygraph results are correct less than 80% of the time. 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. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: p=0.80 H₁: p=0.80 O B. Ho: p=0.20 H₁: p=0.20 O C. Ho: p=0.80 H₁: p > 0.80 O E. Ho: p=0.20 H₁: p0.20 OF. Ho: p=0.80 H₁: p<0.80 The test statistic is z = (Round to two decimal places as needed.) The P-value is. (Round to four decimal places as needed.) Identify the conclusion about the null hypothesis and the final conclusion…
Trials in an experiment with a polygraph include 99 results that include 23 cases of wrong results and 76 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. 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. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. О А. Но: р30.80 H4: p0.80 Ос. Но р3D0.20 H;: p 0.20 ОЕ. Но: р3 0.80 H;: p#0.80 O F. Ho: p= 0.20 H;: p#0.20 The test statistic is z = (Round to two decimal places as needed.) 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…
Trials in an experiment with a polygraph include 96 results that include 23 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. 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. Use the normal distribution as an approximation of the binomial distribution.
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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. 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. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. The test statistic is z = The P-value is dentify the conclusion about the null hypothesis and the final conclusion that addresses the original claim.
Trials in an experiment with a polygraph include 97 results that include 23 cases of wrong results and 74 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. 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. Use the normal distribution as an approximation of the binomial distribution. Let p be the population proportion of correct polygraph results. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: p=0.80 H₁: p0.20 OD. Ho: p=0.20 H₁: p0.80

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