A statistics instructor is interested in determining whether or not a review session improved student performance on the final exam. The review session was administered to a sample of students (n=32) in an attempt to determine if this has a positive effect on exam performance. The population mean for the final exam is 75.2. The sample mean obtained from the 32 students is 80 with a sample standard deviation of 12. Required:
Use α= 0.01 significance level to test the instructor's claim that the review session improved student performance on the final exam.