A student is taking a journalism class and a Chicano studies class. She received an 83 on her first journalism exam (Class Mean = 80; SD = 3) and 43 on her Chicano studies exam (Class Mean = 46; SD = 1.5). Compute z-scores for both exams. Which class did she receive a better grade in? [Must show your work to get credit; Hint: See page 75 in your textbook]