In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6983subjects randomly selected from an online group involved with ears. There were 1315 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.) Because the P-value is ▼ Less than, greater than the significance level, ▼ reject fail to reject the null hypothesis. There is ▼ sufficient insufficient 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 6983subjects randomly selected from an online group involved with ears. There were 1315 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.) Because the P-value is ▼ Less than, greater than the significance level, ▼ reject fail to reject the null hypothesis. There is ▼ sufficient insufficient evidence to support the claim that the return rate is less than 20%.
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6983subjects randomly selected from an online group involved with ears. There were 1315 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.
H0:
p=0.2
H1:
p>0.2
H0:
p>0.2
H1:
p=0.2
H0:
p=0.2
H1:
p≠0.2
H0:
p=0.2
H1:
p<0.2
H0:
p<0.2
H1:
p=0.2
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.)
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%.
▼
Less than,greater than
▼
reject
fail to reject
▼
sufficient
insufficient
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