In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6986 subjects randomly selected from an online group involved with ears. There were 1288 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 H1: p≠0.2 B. H0: p>0.2 H1: p=0.2 C. H0: p=0.2 H1: p<0.2 D. H0: p<0.2 H1: p=0.2 E. H0: p≠0.2 H1: p=0.2 F. H0: p=0.2 H1: p>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.)
In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6986 subjects randomly selected from an online group involved with ears. There were 1288 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 H1: p≠0.2 B. H0: p>0.2 H1: p=0.2 C. H0: p=0.2 H1: p<0.2 D. H0: p<0.2 H1: p=0.2 E. H0: p≠0.2 H1: p=0.2 F. H0: p=0.2 H1: p>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.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6986 subjects randomly selected from an online group involved with ears. There were 1288 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 H1: p≠0.2
C. H0: p=0.2 H1: p<0.2
D. H0: p<0.2 H1: p=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.)
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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to
6999
subjects randomly selected from an online group involved with ears. There were
1310
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
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