You use non-parametric hypothesis tests when you don’t know, can’t assume, and can’t identify what kind of distribution your have.
A Six Sigma Black Belt allocates 100% effort to a project, and they often train green belts while managing Six Sigma projects.
A Six Sigma Black Belt is usually the Six Sigma Project Manager, and to succeed they must follow strong project management techniques.
Gage Repeatability and Reproducibility is commonly referred to as Gage R&R. It’s a method is to look at variability in our measurements.
The EWMA – Exponentially Weighted Moving Average chart is used to monitor variables that make use of the entire history of a given output.