The website http://www.6sigmastudy.com is managed by VMEDU, Inc,
4539 Metropolitan Ct., Frederick, MD *******
If you are looking for a quick, easy, but expensive way to gain PMI PDU then this is your website. If you are looking to gain actual knowledge on Six Sigma, stay away from this site.
Unfortunately the level of knowledge you will gain in six sigma, Lean other related topics is far from what one would expect for the amount of money paid. This website should apply some of the principles they are teaching on six sigma to their own material. The training material provided is very limited. You constantly have to search on other websites to truly understand what this subject or term is about. Main subjects are covered in just a few slides, formulas provided use terms that are not properly defined. There are grammatical errors on nearly every slide, sentences are duplicated, headers are misaligned and have the wrong indentation, some of the multiple-choice exercises have in some cases no description and leaves the tester to guess what the answer is supposed to be. It makes one wonder whether this material was created by a someone in high school. In all the material comes across as very non-professional.
It's astonishing that the PMI institute qualified this educational provider & course and would credit one PDU for taking the course.
I would not recommend this site to anyone.