In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6978 subjects randomly selected from an online group involved with ears. There were 1343 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 hypothosis and altemative hypothesis. O A. Ha: p=0.2 OB. Hg: p>0.2 Hyi pr0.2 H:p-0.2 D. Ho: p=0.2 OC. Ho p-02 H;: p>0.2 H: p<0.2 OR Ho p<0.2 OE Ho pr0.2 Hy: p=0.2 H:p=0.2 The test statistic is z= (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 6978 subjects randomly selected from an online group involved with ears. There were 1343 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 hypothosis and altemative hypothesis. O A. Ha: p=0.2 OB. Hg: p>0.2 Hyi pr0.2 H:p-0.2 D. Ho: p=0.2 OC. Ho p-02 H;: p>0.2 H: p<0.2 OR Ho p<0.2 OE Ho pr0.2 Hy: p=0.2 H:p=0.2 The test statistic is z= (Round to two decimal places as needed.)
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Transcribed Image Text:In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6978 subjects randomly selected from an online group involved
with ears. There were 1343 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 hypothosis and altemative hypothesis.
OB. Hg: p>0.2
OA. Ha: p=0.2
H: pr0.2
H:p=02
D. Ho: p0.2
OC. Ho p-0.2
H: p>0.2
H: p<0.2
OE Ho: p+0.2
Hy: p=0.2
OF H, p<0.2
H:p=0.2
The test statistic is z=
(Round to two decimal places as needed.)
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