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4. Better Than Aspirin?​ A very large study showed that aspirin reduced the rate of first...

4. Better Than Aspirin?​ A very large study showed that aspirin reduced the rate of first heart attacks by 44%. A pharmaceutical company thinks they have a drug that will be more effective than aspirin, and plans to do a randomized clinical trial to test the new drug.

a. What is the null hypothesis the company will use?
b. What is their alternative hypothesis?
c. The group using the new drug had somewhat fewer heart attacks than those in the aspirin group. The P-value from the hypothesis test was 0.28. What do you conclude? d. What would you have concluded if the P-value had been 0.004?

Math   Statistics-And-Probability   
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