Six Sigma Hoax: The Way Professionals Deceive Science

摘要

Statistics is used in Physics (and in Nuclear Science as well): Six Sigma can be useful if properly applied; therefore scientists have to take into account the "correct" ideas. The document shows the ideas of the author to overcome the deep ignorance on Quality as it is found in many books dealing with Statistical Quality Control and Six Sigma. It is evident that there are many types of falseness provided by the "6 SigMONA practitioners": they rob money from their clients that are not aware of that. When the 6σ BMWists say "A company's performance is measured by the sigma level of their business processes" they lie: they do not know that, IF they compute s from the company's data, they know the estimate s (NOT σ) AND s is never equal to σ! The 1st falseness is the statement "variation is the enemy of Quality". The 2nd falseness is the statement "variability reduction is Quality". The 3rd falseness is the wide-spread use of the "Normal Distribution". The 4th falseness is the statement "the number of defectives is 3.4 ppm". The "6 SigMONA movement" does not deal properly with problem prevention, as on the contrary is done by GIQA. Scientificness is absent in the "6 SigMONA applications" as shown in the authors books.