Translate New Tab Dashboard Question 16 2 pts Answer the following questions concerning the descriptive statistics listed below. These descriptive statistics were generated from a random sample of all USF students and contain information about the amount of time they exercise per week and the amount of student loan debt (in thousands of dollars) they expect upon graduating college. Exam1 Pic1.PNG In addition to needing a random sample, what other assumption is necessary for the interval to be valid? The student loan debt of all USF students needs to be a t-distribution with n-1 degrees of freedom. O' The sample of student loan debts needs to be approximately normally distributed No other assumptions are needed. The student loan debt of all USF students needs to be approximately normally distributed. D Question 17 2 ptsQuestion 17 2 pts Answer the following questions concerning the descriptive statistics listed below. These descriptive statistics were generated from a random sample of all USF students and contain information about the amount of time they exercise per week and the amount of student loan debt (in thousands of dollars) they expect upon graduating college. Exam1 Pic1.PNG Based on the standard deviation for the exercise times, where would you expect "most" students exercise times to fall. Assume that the exercise time distribution is known to be slightly skewed to the right. Between O and 9 hours per week. Between 1.5 and 13.5 hours per week Between O and 16.5 hours per week O Between 4.5 and 10.5 hours per week Question 18 2 pts15:40 Done Final Exam Printouts.pdf Questions 15 - 17 Descriptive Statistics Exercise Debt N 22 22 Lo 954 CI 6. 0177 7. 0941 Mean 7. 5000 10.750 Up 954 CI 8 . 9823 14. 406 SD 3. 0000 15.104 Minimum 0. 0000 0. 0000 Median 6. 5000 5.0000 Maximum 22.000 75. 000Question 15 2 pts Answer the following questions concerning the descriptive statistics listed below. These descriptive statistics were generated from a random sample of all USF students and contain information about the amount of time they exercise per week and the amount of student loan debt (in thousands of dollars) they expect upon graduating college. Exam1 Pic1.PNG Give a practical interpretation for the 95% confidence interval for the student loan debt shown above. We are 95% confident that the average student loan debt for all USF students falls between $7,094.10 and$14,406. We are 95% confident that the average student loan debt for the 22 USF students falls between $7,094.10 and $14,406. We are 95% confident that most of the student loan debts for the 22 USF students falls between $7,094.10 and $14,406. We are 95% confident that most of the student loan debts for all USF students falls between $7,094.10 and $14,406. D Question 16 2 pts