Dear Six Sigma Expert:
Consider a process centered at a 6 sigma quality level. If the distrubution mean shifts upward with respect to the specification by 1.5 sigma.
1) What is the area ratio of the process tails A/B?
2) What is the resulting PPM?
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Comments
mbpradeep 7/23/2003
If you want simple SPC routines, You can as well use any spreadsheet applications (MS excel etc) and automate all calculations using macros/formulae.