Luis and Manuel began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Luis took a test in Science and earned a 5'43, and Manuel took a test in Social Studies and earned a ?D.3. Use the fact that all the students' test grades in the Science class had a mean of H3 and a standard deviation of 11.8, and all the students' test grades in Social Studies had a mean of 66.6 and a standard deviation of 10.6 to answer the following questions. a} Calculate the z-score for Luis's test grade. b} Calculate the zscore for Manuel's test grade. 1:} Which person did relativer better? 0 Luis O Manuel 0 They did equally well