A google on "Six Sigma A google on "Six Sigma Rational Subgroup" yields a wealth of incredible confusion and massive misunderstanding of this basic principle. It is time to forget Harry et al, and get back to basics with Shewhart, Deming and Wheeler. Reply
A google on "Six Sigma Rational Subgroup" yields a wealth of incredible confusion and massive misunderstanding of this basic principle. It is time to forget Harry et al, and get back to basics with Shewhart, Deming and Wheeler.