12 2002370 q 3:7 Start Use Sheet 1 of the Excel file to 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? . Pick I = Ex. 1.234 P Since the p-value is Pick