\f37 2.78 38 2.97 39 2.83 40 2.77 41 3.16 42 2.97 43 2.86 44 2.73 45 2.94 46 2.65 47 2.94 48 2.71 49 2.85 50 3.02Use Sheet 2 of the Excal file 10 answer the following questions. A school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of 2.75 at a significance level of 0.05, and checks a randomly chosen sample of 50 classes Create a histogram, and calculate @, the t-statistic, and the p-value. From the histogram, can normality be assumed? T = Ex:1.234 t= Since the p-value is [Pick__ w|than the significance level 0.05, the null hypothesis - evidence exists that the mean GPA is greater than 2.75