Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table

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Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table 6E.9. Set up a control chart for nonconformities using these data. Does the process producing the plates appear to be in statistical control?

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Managing Controlling and Improving Quality

ISBN: 978-0471697916

1st edition

Authors: Douglas C. Montgomery, Cheryl L. Jennings, Michele E. Pfund

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Question Posted: Sep 19, 2015 04:42 AM

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Surface defects have been counted on 25 rectangular steel plates, and the data are shown in Table

Question:

Plate Number ofPlate Number of Number Nonconformities Number Nonconformities 14 15 16 17 18 19 20 21 23 24 25 10 12 13

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Managing Controlling and Improving Quality

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