Preventive techniques in six sigma are used to proactively identify and address potential problems or defects before they occur.
The purpose of fault tree analysis is to effectively identify cause(s) of system failure and mitigate the risks before it occurs.
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.
Six Sigma Master Black Belts are 100% allocated. Six Sigma Master Black Belts often mentor aspiring black belts. Learn more in this overview.