A student taking Accounting and Finance scores 85 in both of her mid-term exams. The average and standard deviation in the Accounting exam are 70 and 12 points. The average and standard deviation in the Finance exam are 76 and 6 points.
a. Calculate z-score for the student score in the Accounting class.
b. Calculate z-score for the student score in the Finance class.
c. Which of these exams rank better?