The Chair of the Quality Department at Motorola University wants to construct a p-chart for determining whether the four faculty members teaching the course are under control concerning the number of students who fail in the course. Accordingly, the Chair sampled 500 final grades from last year for each instructor, and computed the number of failures per instructor as 13, 11, 0, and 16 respectively. Compute the upper and lower standard control limits for this chart (rounded to 4 decimals).
