Operations Management: Processes And Supply Chains (12th Global Edition) - Does Not Include Mylab Operations Management
12th Edition
ISBN: 9780134890357
Author: Lee J. Krajewski, Manoj K. Malhotra
Publisher: Pearson Global Edition
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Chapter 3, Problem 11P
Summary Introduction
Case Summary: In Gr’s Garage, the proportion of average number of customers who comes back again for the same fault is 0.10, during the warranty period of 30 days. Every month, 100 customers are tracked by Gr, in order to find out whether they are returning for same repair works during the warranty period and the same is plotted as proportion to report progress against goal. By setting the control limits on both sides of goal, at two standard deviations, the control limit for the chart needs to be determined. From the sample group 8 customers out of 100, has returned for repairs, for which the repair process is under control or not, needs to be assessed.
Interpretation: The standard deviation gives information as to how various values are spread out when compared to the mean value.
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 A fast food franchise tracked the number of errors that occurred in customers orders. These included;
* wrong menu items
*wrong size drink
*lack of condiments
*wrong price total
*and so on...
Some orders may have more than one error.
In one week, 1500 orders were filled, and a total of 72 errors were discovered.
Find the control limits for a
C – Chart to monitor the number of errors per order. Is order accuracy, good or bad ?
Explain.
Chapter 3 Solutions
Operations Management: Processes And Supply Chains (12th Global Edition) - Does Not Include Mylab Operations Management
Ch. 3 - Should a very pricey handcrafted object of beauty...Ch. 3 - Prob. 2DQCh. 3 - Prob. 3DQCh. 3 - Prob. 1PCh. 3 - Prob. 2PCh. 3 - Prob. 3PCh. 3 - Prob. 4PCh. 3 - Prob. 5PCh. 3 - Prob. 6PCh. 3 - Prob. 7P
Ch. 3 - Prob. 8PCh. 3 - Prob. 9PCh. 3 - Prob. 10PCh. 3 - Prob. 11PCh. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - Prob. 14PCh. 3 - Prob. 15PCh. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - Prob. 18PCh. 3 - Prob. 19PCh. 3 - Prob. 20PCh. 3 - Prob. 21PCh. 3 - Prob. 26PCh. 3 - Prob. 27PCh. 3 - Prob. 28PCh. 3 - Prob. 29PCh. 3 - Prob. 31PCh. 3 - Prob. 1AMECh. 3 - Prob. 2AMECh. 3 - Prob. 3AMECh. 3 - Prob. 4AMECh. 3 - Prob. 5AMECh. 3 - Prob. 1VCCh. 3 - Prob. 2VC
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