A production manager at a Contour Manufacturing plant has inspected the number of defective plastic molds in
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A production manager at a Contour Manufacturing plant has inspected the number of defective plastic molds in 5 random samples of 20 observations each. Following are the number of defective molds found in each sample:
Sample Number of Defects Number of Observations in Sample 1 1 20 2 2 20 3 2 20 4 1 20 5 0 20 Total 6 100 Construct a 3-sigma control chart (z = 3) with this information.
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Related Book For 
Operations Management An Integrated Approach
ISBN: 9781119905523
8th Edition
Authors: R. Dan Reid; Nada R. Sanders
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