Question: Consider a prof who wants to track the the percentage of students absent per class period in his course throughout the semester using p chart. There are 80 students enrolled in the course. The attendance records are shown below. Jan 21st=70 students in class, Jan 30th=69 students in class, Feb 6th=74 students in class, Feb 11th=66 students in class, Feb 18th=74 students in class, Feb 25th=68 students in class, Feb 27th=80 students in class
A. Determine the appropriate upper and lower control limits for the percentage of students absent.
B. The prof is concerned about the attendance on the thursday before spring break. He is considering offering a bonus opportunity if the percentage of students absent on that day is above the upper control limit. What is the maximum number of students who can get the bonus opportunity? Show work and/or explain.