Carissa and Asal began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Carissa took a test in Science and earned a 79.9, and Asal took a test in Social Studies and earned a 64.3. Use the fact that all the students' test grades in the Science class had a mean of 73.9 and a standard deviation of 9.5, and all the students' test grades in Social Studies had a mean of 63.6 and a standard deviation of 9.9 to answer the following questions. a) Calculate the z-score for Carissa's test grade. 2 b) Calculate the z-score for Asal's test grade. Z c) Which person did relatively better? O Carissa O Asal They did equally well