Question: A production manager is interested in determining the variability of the proportion of defective items in a shipment of one of the computer components that

A production manager is interested in determining the variability of the proportion of defective items in a shipment of one of the computer components that her company manufactures. The spreadsheet provided in the file P2_2.XLS contains the proportion of defective components for each of 500 randomly selected shipments collected during a 1-month period. Compute the sample standard deviation of these data and use this value in interpreting the rules of thumb in this case.

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