A poll of 2,091 randomly selected adults showed that 93% of them own cell phones. The technology display below results from a test of the claim that 92% 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 of p = 0.92 vs p#0.92 Sample X N Sample p 95% CI Z-Value P.Value 1952 2,091 0.933525 (0.922847,0.944202) 2.28 0.023 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test O Two-tailed test O Left-tailed test b. What is the test statistic? The test statistic isn (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#0.92 ОВ. На р-0.92 OC. Họ: p> 0.92

A poll of 2,091 randomly selected adults showed that 93% of them own cell phones. The technology display below results from a test of the claim that 92% 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 of p = 0.92 vs p#0.92 Sample X N Sample p 95% CI Z-Value P.Value 1952 2,091 0.933525 (0.922847,0.944202) 2.28 0.023 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test O Two-tailed test O Left-tailed test b. What is the test statistic? The test statistic isn (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#0.92 ОВ. На р-0.92 OC. Họ: p> 0.92

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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