A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests

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A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests that require a second call to complete the repair. Twenty weeks of data are shown in Table 6E.7.

a. Find trial control limits for this process.
b. Design a control chart for controlling future production.

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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 04:44 AM

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A maintenance group improves the effectiveness of its repair work by monitoring the number of maintenance requests

Question:

Sample Sample Size 100 100 100 100 100 100 100 100 100 100 Number Nonconformng 10 15 31 18 24 12 23 15 Number 10

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a Sample 3 is out of control Let us assume there are assign...View the full answer

Managing Controlling and Improving Quality

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