If you have ever compared two machines, two shifts, or two suppliers and found yourself saying “well, their standard deviation is bigger, but they’re also making a bigger part, so is that really worse?”, you were reaching for the Coefficient of Variation, even if you didn’t know its name yet. The Coefficient of Variation (CV) (more…)
The right six sigma exam study method is not memorization. Here is why decision rules beat flashcards, and how to build your own in an afternoon.
Passing an exam does not prove you can run a six sigma project from a blank page to a result. This gut check shows where you actually stand.
Building trust in six sigma projects often matters more than the DMAIC toolkit itself. Here are three practical ways to earn it during a project.
The baseline method is a simple way to find out exactly what to study before you study it. Stop guessing and start using real data.