An alternative to the p chart for the fraction defective is thenp chart for number

Chapter 16, Problem 44

(choose chapter or problem)

An alternative to the p chart for the fraction defective is thenp chart for number defective. This chart has, and the numberof defectives from each sample is plotted on the chart.Construct such a chart for the data of Example 16.6. Will theuse of an np chart always give the same message as the useof a p chart (i.e., are the two charts equivalent)?

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