A pharmaceutical company is testing a new blood pressure lowering drug in a lab study, and they want to stop the study at this analysis if they are confident (at the 0.05 significance level) that the blood pressure improvement of their drug is less than 10 mmHg, which is the minimum efficacy to be commercially successful.Otherwise, they want to continue with a further study. After enrolling 47 patients, the blood pressure improvement of their drug is 9 mmHg, with a sample standard deviation of 4 mmHg. What should they do?

options:

A -Based on a p-value of 0.043, they should not stop the study.

B-Based on a p-value of 0.043, they should stop the study.

C-Based on a p-value of 0.086, they should not stop the study.

DBased on a p-value of 0.086, they should stop the study.

EBased on a p-value of 0.80, they should not stop the study.

FBased on a p-value of 0.80, they should stop the study.