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Six Sigma Quality Improvement with Minitab, Second Edition
book

Six Sigma Quality Improvement with Minitab, Second Edition

by G. Robin Henderson
September 2011
Intermediate to advanced
524 pages
15h 22m
English
Wiley
Content preview from Six Sigma Quality Improvement with Minitab, Second Edition

Appendix 3

Formulae for Control Charts

The constants in the following formulae may be found in Appendix

Charts Based on Variables (Measurements)

Individuals Chart

img

Moving Range Chart

img

Mean or Xbar Chart (Range Based)

img

Range Chart

img

Mean or Xbar Chart (Standard Deviation Based)

img

Standard Deviation Chart

img

EWMA Chart

img

where img denotes an estimate of the process standard deviation and α denotes the smoothing constant.

Charts Based on Attributes (Counts)

Proportion Nonconforming (P) Chart

img

Number Nonconforming (NP) Chart

Count of Nonconformities (P) Chart

Mean Number of Nonconformities per Unit (U) ...

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Publisher Resources

ISBN: 9781119976189Purchase book