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A poll of 2,107 randomly selected adults showed that 92% of them own cell phones. The technology display below results from a test of the claim that 93% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.93 vs p+0.93 Sample X Sample p 95% CI Z-Value P-Value 1932 2,107 0.916944 (0.901457,0.932430) - 2.35 0.019 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude about it? Identify the null hypothesis. O A. Ho: p+0.93 О В. Но: р3D0.93 Ос. Но р<0.9з O D. Нo: р> 0.93 Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. B. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. C. Reject the null hypothesis because the P-value is greater than the significance level, a. D. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, . e. What is the final conclusion? A. There is not sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. B. There is sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. C. There is sufficient evidence to support the claim that 93% of adults own a cell phone. D. There is not sufficient evidence to support the claim that 93% of adults own a cell phone.

A poll of 2,107 randomly selected adults showed that 92% of them own cell phones. The technology display below results from a test of the claim that 93% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.93 vs p+0.93 Sample X Sample p 95% CI Z-Value P-Value 1932 2,107 0.916944 (0.901457,0.932430) - 2.35 0.019 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude about it? Identify the null hypothesis. O A. Ho: p+0.93 О В. Но: р3D0.93 Ос. Но р<0.9з O D. Нo: р> 0.93 Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. B. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. C. Reject the null hypothesis because the P-value is greater than the significance level, a. D. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, . e. What is the final conclusion? A. There is not sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. B. There is sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. C. There is sufficient evidence to support the claim that 93% of adults own a cell phone. D. There is not sufficient evidence to support the claim that 93% of adults own a cell phone.

MATLAB: An Introduction with Applications
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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A poll of 2,107 randomly selected adults showed that 92% of them own cell phones. The technology display below results from a test of the claim that 93% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.93 vs p+0.93 Sample X Sample p 95% CI Z-Value P-Value 1932 2,107 0.916944 (0.901457,0.932430) - 2.35 0.019 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude about it? Identify the null hypothesis. O A. Ho: p+0.93 О В. Но: р3D0.93 Ос. Но р<0.9з O D. Нo: р> 0.93
Transcribed Image Text:A poll of 2,107 randomly selected adults showed that 92% of them own cell phones. The technology display below results from a test of the claim that 93% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts (a) through (e). Test of p = 0.93 vs p+0.93 Sample X Sample p 95% CI Z-Value P-Value 1932 2,107 0.916944 (0.901457,0.932430) - 2.35 0.019 a. Is the test two-tailed, left-tailed, or right-tailed? Left-tailed test Two-tailed test Right tailed test b. What is the test statistic? The test statistic is (Round to two decimal places as needed.) c. What is the P-value? The P-value is (Round to three decimal places as needed.) d. What is the null hypothesis and what do you conclude about it? Identify the null hypothesis. O A. Ho: p+0.93 О В. Но: р3D0.93 Ос. Но р<0.9з O D. Нo: р> 0.93
Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. B. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. C. Reject the null hypothesis because the P-value is greater than the significance level, a. D. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, . e. What is the final conclusion? A. There is not sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. B. There is sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. C. There is sufficient evidence to support the claim that 93% of adults own a cell phone. D. There is not sufficient evidence to support the claim that 93% of adults own a cell phone.
Transcribed Image Text:Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. B. Fail to reject the null hypothesis because the P-value is greater than the significance level, a. C. Reject the null hypothesis because the P-value is greater than the significance level, a. D. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, . e. What is the final conclusion? A. There is not sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. B. There is sufficient evidence to warrant rejection of the claim that 93% of adults own a cell phone. C. There is sufficient evidence to support the claim that 93% of adults own a cell phone. D. There is not sufficient evidence to support the claim that 93% of adults own a cell phone.
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