Question: 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

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. calculate x, the t, statistic, and the p-value. From the Histogram can normality be assumed? Since the p-value is(greater/less) than the significance level 0.05

, the null hypothesis( fails to be rejected/rejected). (Insufficient/sufficient) evidence exists that the mean GPA is greater than 2.75.

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