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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®
33Confidence Intervals to Assess Variation in Fat Content
output shown in Figure3.17, the upper bound is 0.492 gram for the standard
deviation (given by the chi-square method). This means that 95% of the ham-
burgers have fat content with a standard deviation that is lower than 0.492
gram. Because 0.492 gram is less than the assumption of 1 gram, it is evident
that the process has improved with respect to the standard deviation as well.
One can also simulate condence intervals using Minitab
®
. The operations
manager wishes to perform the simulation for 10 normally distributed sam-
ples with a sample size of 20 hamburgers. Doing what is shown i
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Publisher Resources

ISBN: 9781482205572