Join other iSixSigma newsletter subscribers:
MONDAY, JULY 06, 2015
Font Size
Dictionary Convert DPMO/Sigma To Cpk

Convert DPMO/Sigma To Cpk

Cpk = Z(short-term) which is sigma level / 3

However, if you are starting with DPMO, convert it to a decimal value(divide by 1,000,000), look this decimal value up in a standard normal curve(z table) and find the corresponding z. Minitab can do this as well. Anyway this is long term z. To convert to short term z which is sigma level:

z(short term) which is sigma level = Z(long term) + 1.5

then you can plug into the equation above to get Cpk

Six Sigma Certification Online
Lean Six Sigma Green Belt and Black Belt Certification
Six Sigma Statistical and Graphical Analysis with SigmaXL
Lean and Six Sigma Project Examples
Six Sigma Online Certification: White, Yellow, Green and Black Belt

Login Form