In a trial designed to test the effectiveness of a drug in preventing heart disease, 12,362 male physicians were treated with the drug and 12,365 male physicians were given placebos. Among the subjects in the drug treatment group, 134 experienced myocardial infarctions (heart attacks). Among the subjects given placebos, 305 experienced myocardial infarctions. Use a 0.05 significance level to test the claim that the drug has no effect on myocardial infarctions. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. c. Based on the results, does the drug appear to be effective? a. Let the physicians that received the drug be sample 1 and let physicians that received the placebo be sample 2. What are the null and alternative hypotheses? O A. Ho: P1 =P2 H: P1 P2 O D. Ho: P1 =P2 H: P1 P2 O E. Ho: P1 = P2 H: P > P2 OF. Ho: P1 +P2 H: P =P2 Identify the test statistic. O(Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is V the significance level a, V the null hypothesis.

In a trial designed to test the effectiveness of a drug in preventing heart disease, 12,362 male physicians were treated with the drug and 12,365 male physicians were given placebos. Among the subjects in the drug treatment group, 134 experienced myocardial infarctions (heart attacks). Among the subjects given placebos, 305 experienced myocardial infarctions. Use a 0.05 significance level to test the claim that the drug has no effect on myocardial infarctions. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. c. Based on the results, does the drug appear to be effective? a. Let the physicians that received the drug be sample 1 and let physicians that received the placebo be sample 2. What are the null and alternative hypotheses? O A. Ho: P1 =P2 H: P1 P2 O D. Ho: P1 =P2 H: P1 P2 O E. Ho: P1 = P2 H: P > P2 OF. Ho: P1 +P2 H: P =P2 Identify the test statistic. O(Round to two decimal places as needed.) Identify the P-value. (Round to three decimal places as needed.) What is the conclusion for this test? Since the P-value is V the significance level a, V the null hypothesis.

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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