In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6997 subjects randomly selected from an online group involved with ears There were 1309 surveys returned Use a 0 01 significance level to test the claim tha the return rate is less than 20% Use the Pvalue method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis O B. H p<0.2 OA H pr02 H, p=02 H, p=02 OC. H p02 OD. H p>02 H p=0.2 H, p>02 OE H p-02 OF H p=02 H, pr02 H p<02 The test statistic isz (Round to two decimal places as needed) The Pvalue is (Round to three decimal places as needed) Because the P.value is the significance level, the null hypothesis There is evidence to support the claim that the return rate is less than 20%

In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6997 subjects randomly selected from an online group involved with ears There were 1309 surveys returned Use a 0 01 significance level to test the claim tha the return rate is less than 20% Use the Pvalue method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis O B. H p<0.2 OA H pr02 H, p=02 H, p=02 OC. H p02 OD. H p>02 H p=0.2 H, p>02 OE H p-02 OF H p=02 H, pr02 H p<02 The test statistic isz (Round to two decimal places as needed) The Pvalue is (Round to three decimal places as needed) Because the P.value is the significance level, the null hypothesis There is evidence to support the claim that the return rate is less than 20%

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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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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6997 subjects randomly selected from an online group involved with ears. There were 1309 surveys returned. Use a 0.01 significance level to test the claim tha
the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.
Identify the null hypothesis and alternative hypothesis.
OA. Ho p#02
O B. Ho: p<0.2
H p=02
H:p=0.2
OC. Ho p=02
O D. Ho: p>0.2
H p>02
H:p=0.2
OE. Ho p=02
OF. Ho: p=0.2
H p#02
Hip<0.2
The 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 is
the significance level,
the null hypothesis. There is
evidence to support the claim that the return rate is less than 20%.

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