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Six Sigma Case Studies with Minitab®
book

Six Sigma Case Studies with Minitab®

by Kishore K. Pochampally, Surendra M. Gupta
February 2014
Intermediate to advanced content levelIntermediate to advanced
318 pages
8h 6m
English
CRC Press
Content preview from Six Sigma Case Studies with Minitab®
28 Six Sigma Case Studies with Minitab
®
the hamburgers have fat content with a standard deviation that is lower than
2.89 grams. Inasmuch as 2.89 grams is much greater than the assumption of
1 gram, the operations manager considers this also a serious issue.
Before proceeding to the improve phase, the operations manager wishes
to check how many of the customers are dissatised. To this end, he ran-
domly selects 1,000 customers who bought hamburgers and nds that 83 of
them are dissatised with the food quality. He then proceeds to construct a
condence interval for the proportion of all customers who are dissatised.
Figure3.11 shows how to select ...
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Publisher Resources

ISBN: 9781482205572