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What is the final conclusion?

What is the final conclusion?

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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Answer D. And E.

e. What is the final conclusion? O A. There is sufficient evidence to warrant rejection of the claim that 91% of adults own a cell phone. B. There is sufficient evidence to support the claim that 91% of adults own a cell phone. C. There is not sufficient evidence to warrant rejection of the claim that 91% of adults own a cell phone. O D. There is not sufficient evidence to support the claim that 91% of adults own a cell phone.
Transcribed Image Text:e. What is the final conclusion? O A. There is sufficient evidence to warrant rejection of the claim that 91% of adults own a cell phone. B. There is sufficient evidence to support the claim that 91% of adults own a cell phone. C. There is not sufficient evidence to warrant rejection of the claim that 91% of adults own a cell phone. O D. There is not sufficient evidence to support the claim that 91% of adults own a cell phone.
A poll of 2,114 randomly selected adults showed that 94% of them own cell phones. The technology display below results from a test of the claim that 91% 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 = 0.91 vs p+ 0.91 Sample X Sample p 95% CI Z-Value P-Value 1 1987 2,114 0.939924 (0.926612,0.953237) 4.81 0.000 ..... a. Is the test two-tailed, left-tailed, or right-tailed? Two-tailed test Right tailed test Left-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. О А. Но: р> 0.91 О в. Но: р#0.91 О с. Но: р<0.91 O D. Ho: p= 0.91 Choose the correct answer below. A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O B. Reject the null hypothesis because the P-value is greater than the significance level, a. O C. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. Eail to reiect the null hypothesis because the P-value is greater than the significance level a
Transcribed Image Text:A poll of 2,114 randomly selected adults showed that 94% of them own cell phones. The technology display below results from a test of the claim that 91% 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 = 0.91 vs p+ 0.91 Sample X Sample p 95% CI Z-Value P-Value 1 1987 2,114 0.939924 (0.926612,0.953237) 4.81 0.000 ..... a. Is the test two-tailed, left-tailed, or right-tailed? Two-tailed test Right tailed test Left-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. О А. Но: р> 0.91 О в. Но: р#0.91 О с. Но: р<0.91 O D. Ho: p= 0.91 Choose the correct answer below. A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a. O B. Reject the null hypothesis because the P-value is greater than the significance level, a. O C. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. Eail to reiect the null hypothesis because the P-value is greater than the significance level a
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