Consider the following hypothesis test:
Ho: u= 12
Ha: u>12
A sample of 25 provided a sample mean x=14 and a sample standard deviation s = 4.32
a. Compute the test statistic.
b. Use the t distribution table to compute a range for the p value
c. At alpha= 0.05, what is the conclusion.
d. What is the rejection rule using the critical value? What is the conclusion?