Use Sheet 2 ofthe 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 E, the tstatistic, and the pvalue. From the histogram, can normality be assumed? Pick v E = EX: \"1.234 t = p = Since thepvalue is Pick v than the signicance level 0.05, the null hypothesis Pick v - Pick v evidence exists that the mean GPA is greater than 2.75