ed Question 4 0 / 10 pts Professor Murphy wants to set up a control chart to monitor the percentage of absenteeism in his introductory statistics course (50 students are registered). Absences per period for the last 15 class sessions are in the table below. Session 6 7 8 9 10 11 12 13 14 15 Absent 5 8 10 3 5 5 2 0 2 3 Calculate the empirical centerline for a p-chart to track absences