Table 5E.3 presents 20 subgroups of five measurements on the time it takes to service a customer.

Question:

a. Set up and R control charts for this process and verify that it is in statistical control.

b. Following establishing of the control charts in part (a), 10 new samples have been provided in Table 5E.4. Plot the new and R values using the control chart limits you established in part (a) and draw conclusions.

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Managing Controlling and Improving Quality

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

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Question Posted: Sep 19, 2015 04:40 AM

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Table 5E.3 presents 20 subgroups of five measurements on the time it takes to service a customer.

Question:

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a MTB Stat Control Charts Variables Charts for Subgroups XbarR The process appears to exhibit statis...View the full answer

Managing Controlling and Improving Quality

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