Exercise 10.44: Does lovastatin (a cholesterol-lowering drug) reduce the risk of

Question

Exercise 10.44: Does lovastatin (a cholesterol-lowering drug) reduce the risk of heart attack? In a Texas study, researchers gave lovastatin (L) to 2,325 people (Group 1) and an inactive substitute (I) to 2,081 (Group 2) people (average age 58). After 5 years, 57 of the lovastatin group had suffered a heart attack, compared with 97 for the inactive pill. Set a = .01

Which of the following is closest to the decision?
A. Cannot Reject Ho B. Reject H1 C. Test is incomplete
D. Fail to Reject Ho E. Reject Ho

Explanation / Answer

E. Reject Ho; there is significant statistical evidence that the application of the medicine reduces the incidence of death.

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