A pharmaceutical company wants to answer the question whethe

A pharmaceutical company wants to answer the question whether it takes longer than 45 seconds for a drug in pill form to dissolve in the gastric juices of the stomach. A sample was taken from 8 patients taking the given drug in pill form and times for the pills to be dissolved were measured. The mean was 45.212 sec for the sample data with a standard error of 0.580. Determine the P-value for this test.

A. 0.649

B. 0.366

C. 0.724

D. 0.362

Solution

T = 45.212 - 45 / (0.580 / srqt (8 ) )

T=1.03

df = 8-1=7

p value : 0.362