TSF #001: The Six Fix

Welcome to The Six Fix, where I’m on a mission to make Lean Six Sigma concepts more real, more practical, and more fun than ever before.

Chi-Square Variance Test

Chi-Square Variance Test: The Definitive Guide for Six Sigma Practitioners The chi-square variance test is an essential statistical tool in the Six Sigma toolkit, used to test hypotheses about the variability of a process. Whether you are verifying a supplier’s claim, evaluating the impact of a process improvement, or assessing consistency, understanding how to apply (more…)