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In a study of cell phone usage and brain hemispheric dominance, an Intemet survey was e-mailed to 6972 subjects randomly selected from an onllne group with ears. There were 1337 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 nomal distribution as an approximation to the binomial distribution. ..... Identify the null hypothesis and alternative hypothesis. O B. Ho: p =0.2 H: p<0.2 O A. Ho: p<0.2 H: p=0.2 O C. Ho: p=0.2 H: p.> 0.2 O D. Ho: p#0.2 H: p 0.2 OF. Ho: p>0.2 O E. Ho: p=0.2 H: p#0.2 H: 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 V the significance level, V the null hypothesis. There is V 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 Intemet survey was e-mailed to 6972 subjects randomly selected from an onllne group with ears. There were 1337 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 nomal distribution as an approximation to the binomial distribution. ..... Identify the null hypothesis and alternative hypothesis. O B. Ho: p =0.2 H: p<0.2 O A. Ho: p<0.2 H: p=0.2 O C. Ho: p=0.2 H: p.> 0.2 O D. Ho: p#0.2 H: p 0.2 OF. Ho: p>0.2 O E. Ho: p=0.2 H: p#0.2 H: 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 V the significance level, V the null hypothesis. There is V evidence to support the claim that the return rate is less than 20%.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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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In a study of cell phone usage and brain hemispheric dominance, an Intemet survey was e-mailed to 6972 subjects randomly selected from an online group involved with ears. There were 1337 surveys returned. Use a 0.01 significance level to test the claim that the retum 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. O A. Ho: p<0.2 H: p=0.2 O B. Ho: p=0.2 H: p<0.2 O C. Ho: p=0.2 H: p.> 0.2 O D. Hg: p 0.2 H,: p= 0.2 c. O E. Ho: p=0.2 H: p 0.2 OF Hop>0.2 H 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 Vthe significance level, the null hypothesis. There is V evidence to support the claim that the return rate is less than 20%.
Transcribed Image Text:In a study of cell phone usage and brain hemispheric dominance, an Intemet survey was e-mailed to 6972 subjects randomly selected from an online group involved with ears. There were 1337 surveys returned. Use a 0.01 significance level to test the claim that the retum 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. O A. Ho: p<0.2 H: p=0.2 O B. Ho: p=0.2 H: p<0.2 O C. Ho: p=0.2 H: p.> 0.2 O D. Hg: p 0.2 H,: p= 0.2 c. O E. Ho: p=0.2 H: p 0.2 OF Hop>0.2 H 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 Vthe significance level, the null hypothesis. There is V evidence to support the claim that the return rate is less than 20%.
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