In the previous question, suppose the management decides to use a chart for the analysis. As noted

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In the previous question, suppose the management decides to use a chart for the analysis. As noted earlier, 10% of produced items are known to be nonconforming. The firm analyzes a batch of production items for 6 weeks and computes the following percentages of nonconforming items.

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a. Suppose weekly batches consisted of 50 items.
Construct a chart and determine if the machine need adjustment in any of the weeks.

b. Suppose weekly batches consisted of 100 items.
Construct a chart and determine if the machine needs adjustment in any of the weeks. L056

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