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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®
110 Six Sigma Case Studies with Minitab
®
FIGURE 7.7
Removal of “Free Rell” from the model.
Link Function: Logit
Response Information
Variable Value Count
Satisfied Event 22
Non-event 76
Sample Size Total 98
Logistic Regression Table
Odds 95% CI
Predictor Coef SE Coef Z P Ratio Lower Upper
Constant -5.42252 1.51334 -3.58 0.000
Variety of Drinks 0.409216 0.201962 2.03 0.043 1.51 1.01 2.24
Number of Waiters 0.140952 0.0618736 2.28 0.023 1.15 1.02 1.30
Log-Likelihood = -47.170
Test that all slopes are zero: G = 10.037, DF = 2, P-Value = 0.007
Goodness-of-Fit Tests
Method Chi-Square DF P
Pearson 0.145305 2 0.930
Deviance 0.143553 2
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Publisher Resources

ISBN: 9781482205572