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%.

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 58E: What is meant by the sample space of an experiment?

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