Question: A control chart for the number nonconforming is to be established, based on samples of size 400. To start the control chart, 50 samples were

A control chart for the number nonconforming is

A control chart for the number nonconforming is to be established, based on samples of size 400. To start the control chart, 50 samples were selected and the number nonconforming in each sample determined, yielding 50 i=1 2. D, = 1, 200 (a) What are the control limits of the np chart

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