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Does Lovastatin reduce the risk of heart attack?

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October 6th, 2022

Does Lovastatin reduce the risk of heart attack? In texas study, researchers gave lovastatin to 2,325 people and an inactive substitute to 2081 people. After 5 years, 57 of the patients had suffered a heart attack, compared with 97 for the inactive pill.

a) State the appropriate hypothesis.

b) Obtain a test statistic and p value. Interpret the results at a=.01

c) Is normality assured?

d) Is the difference large enough to be important?

e) What else would doctors need to know before prescribing the drug widely?

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