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In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 136 of 455 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 26 of 109 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a different proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the a=0.01 level of significance? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: P1 =0 versus Ho: P1 +0 OB. Ho: P1 =P2 versus H,: P1 #P2 O C. Ho: P1 =P2 versus H,: P1 P2 The test statistic z, is 1.25. (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.)

In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 136 of 455 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 26 of 109 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a different proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the a=0.01 level of significance? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: P1 =0 versus Ho: P1 +0 OB. Ho: P1 =P2 versus H,: P1 #P2 O C. Ho: P1 =P2 versus H,: P1 P2 The test statistic z, is 1.25. (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.)

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
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The P value is_. Round to three decimal places as needed.

 

In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 136 of 455 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 26 of 109 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a different proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the a= 0.01 level of significance? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho P=0 versus Ho P170 %3D B. Ho P1=P2 versus H, p,7P2 OC. Ho p,=P2 versus H, P1<P2 O D. Ho p,=P2 versus H, P1> P2 The test statistic z, is 1.25. (Round to two decimal places as needed.) 0. The P-value is | (Round to three decimal places as needed.)
Transcribed Image Text:In randomized, double-blind clinical trials of a new vaccine, rats were randomly divided into two groups. Subjects in group 1 received the new vaccine while subjects in group 2 received a control vaccine. After the second dose, 136 of 455 subjects in the experimental group (group 1) experienced drowsiness as a side effect. After the second dose, 26 of 109 of the subjects in the control group (group 2) experienced drowsiness as a side effect. Does the evidence suggest that a different proportion of subjects in group 1 experienced drowsiness as a side effect than subjects in group 2 at the a= 0.01 level of significance? Determine the null and alternative hypotheses. Choose the correct answer below. O A. Ho P=0 versus Ho P170 %3D B. Ho P1=P2 versus H, p,7P2 OC. Ho p,=P2 versus H, P1<P2 O D. Ho p,=P2 versus H, P1> P2 The test statistic z, is 1.25. (Round to two decimal places as needed.) 0. The P-value is | (Round to three decimal places as needed.)
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