A poll of 2,020 randomly selected adults showed that 97% of them own cell phones. The technology display below results from a test of the claim that 94% 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 = 0.94 vs p#0.94 Sample X Sample p 95% CI Z-Value P-Value 1 1953 2,020 0.966832 (0.959022,0.974641) 5.08 0.000 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test Two-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. O A. Ho: p+0.94

A poll of 2,020 randomly selected adults showed that 97% of them own cell phones. The technology display below results from a test of the claim that 94% 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 = 0.94 vs p#0.94 Sample X Sample p 95% CI Z-Value P-Value 1 1953 2,020 0.966832 (0.959022,0.974641) 5.08 0.000 a. Is the test two-tailed, left-tailed, or right-tailed? O Right tailed test Two-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. O A. Ho: p+0.94

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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