Data from a sample of randomly selected FRESHMEN students is shown below. The variables collected are: Exercise - the number of hours a student exercise per week Debt - the amount of student loan debt (in thousands of dollars) a student is expected to graduate with Age - the age of a student GPA - the GPA of a student Descriptive Statistics for Year - Freshman Variable N Lo 95% CI Mean Up 95% CI Exercise 29 5.3191 7.8621 10.405 Debt 25 2.4186 8.3200 14.221 Age 31 18.192 18.419 18.647 GPA 31 3.4803 3.6219 3.7636 SD 6.6854 14.297 0.6204 0.3863 In order to interpret the Cl for the average GPA of all freshman students, which of the following statements is true? The population mean GPA needs to be approximately normally distributed. The GPA values in the population would need to be approximately normally distributed No assumption is needed about the GPA values in the population since the sample size is considered large. The GPA values in the population would need to be an approximate t-distribution with n-1 degrees of freedom