Nels Neugent, Purchasing Manager at Mid-West Medical Center, Is Designing

Nels Neugent, Purchasing Manager at Mid-West Medical Center, is designing a p chart to monitor the proportion of defective purchase orders issued at Mid-West.He has the proportion of defective orders for 22 samples of purchase orders.Each sample contains 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