Question

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 proportions defective for 22 samples of purchase orders. Each sample contains 150 purchase orders, and the average proportion defective is 0.08. The upper control limit for Nels's p chart is ___________.
a) 0.1736
b) 0.1465
c) 0.1312
d) 0.0940
e) 0.1845

Answer

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