Hu and Salom began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Hu took a test in Math and earned a 80.7, and Salom took a test in Science and earned a 65.5. Use the fact that all the students' test grades in the Math class had a mean of 70.9 and a standard deviation of 9.3, and all the students' test grades in Science had a mean of 66.8 and a standard deviation of 9.8 to answer the following questions. a) Calculate the z-score for Hu's test grade. b) Calculate the z-score for Salom's test grade. c) Which person did relatively better? Hu Salom They did equally well. *Be sure that you could explain your reasoning!*