Data from a sample of randomly selected 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 Exercise Debt Age GPA N 241 196 254 248 Lo 95% CI 7.0769 8.8655 20.069 3.2702 Mean 7.8133 11.311 20.500 3.3200 Up 95% CI 8.5497 13.757 20.931 3.3822 SD 5.8032 17.361 3.5000 0.3400 Minimum 0.0000 0.0000 17.000 1.7500 1st Quartile 4.0000 0.0000 19.000 3.0200 Median 7.0000 3.0000 20.000 3.3600 3rd Quartile 10.000 20.000 21.000 3.6950 Maximum 35.000 100.00 41.000 4.0000 Interpret the median Exercise time shown in the printout. The most common exercise time. reported was 7 hours per week The average exercise time of the 241 sampled students was 7 hours per week Half of the 241 exercise times were less than 7 hours per week