Question

You are testing H0: μ = 100 against Ha: μ < 100 based on an SRS of 25 observations from a Normal population. The t statistic is t = −2.5. The P-value for the statistic

falls between 0.01 and 0.02.
B.	falls between 0.02 and 0.04.
C.	is less than 0.01.

Answer 1

The probability is about 0.0098 with 24 degrees of freedom (n-1 where n=25, sample size). So the answer is C.