Better than aspirin? A very large study showed thataspirin reduced the rate of first heart attacks by 44%. Apharmaceutical company thinks they have a drug that will be more effective than aspirin, and plans to do a random-ized clinical trial to test the new drug. a) What is the null hypothesis the company will use?b) What is their alternative hypothesis?They conducted the study and found that the groupusing the new drug had somewhat fewer heart attacksthan those in the aspirin group.c) The P-value from the hypothesis test was 0.28. Whatdo you conclude?d) What would you have concluded if the P-value hadbeen 0.004?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.