Consider the following hypotheses:
H0: ? ? 24.1
HA: ? > 24.1
A sample of 60 observations yields a sample mean of 25.4. Assume that the sample is drawn from a normal population with a known population standard deviation of 5.9.
a) Calculate the p-value:
b) Calculate the p-value if the above sample mean was based on a sample of 150 observations.