Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heart attack or stroke in coronary patients. A total of 6745 patients were given clopidogrel, and 6681 were given ticagrelor. Of the clopidogrel patients, 546 suffered a heart attack or stroke within one year, and of the ticagrelor patients, 671 suffered a heart attack or stroke. Can you conclude that the proportion of patients suffering a heart attack or stroke is greater for ticagrelor? Let p, denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p, denote the proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a=0.10 level of significance and the critical value method. Part 1 of 5 State the null and alternate hypotheses. Ho: P1 = P2 H : P1

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