Question

In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6955 subjects randomiy selected from an online group involved with ears. There were 1328 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 the binomial distribution. Identify the null hypothesis and alternative hypothesis. A. \( H_{0}: p=0.2 \) B. \( H_{0}: p=0.2 \) \( H_{1} p<0.2 \) \( H_{1}: p \neq 0.2 \) C. \( \mathrm{H}_{0}: \mathrm{p} \neq 0.2 \) D. \( H_{0}: p<0.2 \) \( H_{1} p=0.2 \) \( H_{1} p=0.2 \) E. \( H_{0}: p>0.2 \) F. \( H_{0}: p=0.2 \) \( H_{1}-\mathrm{p}=0.2 \) \( H_{1}: p>0.2 \) The test statistic is \( z= \) \( \square \). (Round to two decimal places as needed.)

          In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6955 subjects randomiy selected from an online group involved with ears. There were 1328 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 the binomial distribution.

Identify the null hypothesis and alternative hypothesis.
A. \( H_{0}: p=0.2 \) B. \( H_{0}: p=0.2 \) \( H_{1} p<0.2 \) \( H_{1}: p \neq 0.2 \)
C. \( \mathrm{H}_{0}: \mathrm{p} \neq 0.2 \) D. \( H_{0}: p<0.2 \) \( H_{1} p=0.2 \) \( H_{1} p=0.2 \)
E. \( H_{0}: p>0.2 \) F. \( H_{0}: p=0.2 \) \( H_{1}-\mathrm{p}=0.2 \) \( H_{1}: p>0.2 \)

The test statistic is \( z= \) \( \square \).
(Round to two decimal places as needed.)

In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6955 subjects randomiy selected from an online group involved with ears. There were 1328 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 the binomial distribution.

Identify the null hypothesis and alternative hypothesis.
A. H0: p=0.2 B. H0: p=0.2 H1 p<0.2 H1: p ≠ 0.2
C. H0: p≠ 0.2 D. H0: p<0.2 H1 p=0.2 H1 p=0.2
E. H0: p>0.2 F. H0: p=0.2 H1-p=0.2 H1: p>0.2

The test statistic is z= □.
(Round to two decimal places as needed.)

Added by Tammy J.

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