Using traditional methods it takes8.4 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique on22 students and observed that they had a mean of8.6 hours with a standard deviation of1.5. Is there evidence at the0.05 level that the technique performs differently than the traditional method? Assume the population distribution is approximately normal.

a) State the null and alternative hypotheses.

b) Find theP-value for the hypothesis test. Round your answer to four decimal places.

c) Make the decision to reject or fail to reject the null hypothesis.