Two classes of pre-calculus students took an exam to place them into either Advance Placement or regular calculus the following year. Given the following data, can you reject the null hypotheses (alpha=0.05) that, as groups these classes are equally prepared (or not) for AP calculus? Class 1 Class 2 62 46 54 53 59 50 56 52 59 54 59 52 60 49 60 55 58 48 56 52