Kizspy Question: 42
(Choose 1 answer)
A pharmaceutical company is testing a new drug's effectiveness in reducing blood pressure. The null
hypothesis (HO) states that the drug has no effect on blood pressure. The company conducts a study with a
sample of 50 participants and finds a mean reduction in blood pressure of 5 mmHg with a standard deviation
of 2 mmHg. The p-value obtained from the hypothesis test is 0.02. What decision should the company make
regarding the null hypothesis at a significance level of 0.05?
A. The drug has effect on blood pressure
B. Fail to reject the null hypothesis
C. Cannot make a decision based on the given information
D. Retest the hypothesis with a larger sample size
