Some national statistics indicate the self-reported number of minutes per week of exercise is ? = 96.8 among college students.
An advertising campaign was aimed at new freshmen encouraging them to increase their level of physical activity.
Two researchers asked a random sample of these students to keep a log of their exercise time (in minutes) for a week near the end of their freshman year.
They indicated the following values:
105 102 109 114 72 230 50 90 77 99 120 142 98 44 205 65 130