I have 2 writing assignments in class. The first assignment, which had a mean of 10 and a standard deviation of 2, I got a score of 12. The second assignment had a mean of 18 and an s.d. of 3, I got a 21. I need to know which assignment did I do better, relative to my classmates?
Denise Hi Denise, You need to use socalled Zscore for such problems. Second test Zscore = ^{(2118)}/_{3} = 1,
