25) 2-POINT QUESTION. Test scores for a history class had a mean of 79 with a standard deviation of 4.5. Test scores for a physics class had a mean of

69 with a standard deviation of 3.7. Suppose a student gets a 76 on the history test and a 100 on the physics test. a) Calculate the z-score for each test. Use the symbols Zh for the history test and Zp for the physics test. Show your work. b) On which test did the student perform better? Explain your reason.