If your grade on a test was determined by your standing relative to others in a class and you had a score of 90, what class should you most like to be in (hint: which one has the largest z-score)? If your grade on a test was determined by your standing relative to others in a class and you had a score of 90, what class should you most like to be in (hint: which one has the largest z-score)? Mean = 85, SD = 10 Mean = 83, SD = 5 Mean = 80, SD = 20 Mean = 90, SD = 5