Nels Neugent, Purchasing Manager at Pacific Medical Center, is designing a p chart to monitor the proportion of defective purchase orders issued at Pacific.He has the proportions defective for 22 samples of purchase orders.Each sample contained 150 purchase orders, and the average proportion defective is 0.08.The centerline for Nels's p chart is ___.
A)0.08
B)75
C)22
D)1.76
E)0.008

Question

Quizplus · Accepted Answer

The centerline of a p chart is calculated as the average of all the proportion defective values in the sample. In this case, the average proportion defective is 0.08, so the centerline of the p chart is also 0.08. Therefore, the answer is A) 0.08.

Nels Neugent, Purchasing Manager at Pacific Medical Center, Is Designing