Six Sigma Terminology

This dictionary provides useful terms and definitions for Six Sigma understanding. How to Use Six Sigma Terminology In the alphabet listed a...

a standardized value formed by subtracting the mean and then dividing this difference by the standard deviation. A Z value is a data point...

Often called 'benchmarking sigma' or 'sigma value'. The distribution, or variation, or spread around the mean(average) valu...

Z shift is the difference between ZST and ZLT. The larger the Z shift, the more you are able to improve the control of the special factors i...

A measure of the distance in standard deviations of a sample from the mean.