Melissa and Bria began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Melissa took a test in Art History and earned a 74.6, and Bria took a test in Science and earned a 61.4. Use the fact that all the students' test grades in the Art History class had a mean of 71.7 and a standard deviation of 10.5, and all the students' test grades in Science had a mean of 62.8 and a standard deviation of 8 to answer the following questions. a) Calculate the z-score for Melissa's test grade. z=z= [Round your answer to two decimal places.] b) Calculate the z-score for Bria's test grade. z=z= [Round your answer to two decimal places.] c) Which person did relatively better?

• Melissa
• Bria
• They did equally well.