8. (12 pts) A random sample of 50 medical school applicants at a university has a mean raw score of 31 on the multiple-choice portions of the Medical College Admission Test (MCAT). A student says that the mean raw score for the school's applicants is more than 30. Assume the population standard deviation is 2.5. Perform a hypothesis test at the 90% level of significance. Use the Classical approach. 10% 1 21 2 1 251041= 30 m = 50