A poll of 2,121 randomly selected adults showed that 87% of them own cell phones. The technology display below results from a test of the claim that 95% ofadults 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=0.95 vs p *0.95Sample XN2,12111846Sample p0.870344b. 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 0.000(Round to three decimal places as needed.)95% CI(0.851556,0.889133)Z-Value- 16.83P-Value0.000▸

It is given that a poll of 2121 randomly selected adults showed that 87% of them own cell phones and…

Answered: A poll of 2,121 randomly selected…

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 2,153 randomly selected adults showed that 88% of them own cell phones. The technology display below results from a test of the claim that 90% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e). Test pf p= 0.9 vs p≠ 0.9 Sample 1 X 1893 N 2,153 Sample p 0.879238 95% CI (0.865474, 0.893002) Z-Value -3.21 P-Value 0.001 Is it a two tailed?Right tailed? Left tailed? What is the test statistic? What is the P-value? What is the null hypothesis and what is concluded about it? What is the final conclusion?

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