In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6982 subjects randomly selected from an online group involved with ears. There were1309 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to thebinomial distribution.Identify the null hypothesis and alternative hypothesis.O A. Ho: p=0.2H₁: p<0.2O C. Ho: p=0.2H₁: p=0.2O E. Ho: p<0.2H₁: p=0.2The test statistic is z =(Round to two decimal places as needed.)The P-value is(Round to three decimal places as needed.)Because the P-value isthe significance level,B. Ho:p>0.2H₁: p=0.2D. Ho: p=0.2H₁: p>0.2OF. Ho:p # 0.2H₁: p=0.2the null hypothesis. There isevidence to support the claim that the return rate is less than 20%.

Sample size n =6982Favorable cases x =1309Sample proportion p^=x/n =1309/6982=0.1875

Answered: Identify the null hypothesis and…

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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