Question

A very large study showed that aspirin reduced the rate of 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. State the null hypothesis and the alternative hypothesis they should use for completing a hypothesis test.

Answer 1

Answer: $H_0:\mu=0.44\ ,H_a:\mu<0.44$

Step-by-step explanation:

Since we have given that

A very large study showed that aspirin reduced the rate of heart attacks by 44%.

we claim that they have a drug that will be more effective than aspirin.

so, our hypothesis would be

$H_0:\mu=0.44\\\\H_a:\mu<0.44$

So, it will be one tail test.

Hence, $H_0:\mu=0.44\\\\H_a:\mu<0.44$