Use the Main Effects Plot to determine the relative impact of a variety of inputs on the output of interest.
One of the questions I often get is “Now that I am a certified Six Sigma Black Belt, How to Prepare for a Job as a Six Sigma Black Belt”
One of the core reasons I was able to pass all of my Six Sigma certifications the first time is that I had spent time teaching the concepts.
You need experience before you can get certified as a Six Sigma practitioner. The question becomes; How to Find Qualified Six Sigma Projects?
Public school systems in the United States are in desperate need of Six Sigma methodology. Techniques like control charts and histograms would help.