Comments on: Statistical Process Control Techniques – Why You Should Care https://6sigma.com/statistical-process-control-why-you-should-care/ Six Sigma Certification and Training Fri, 28 Feb 2025 06:02:18 +0000 hourly 1 By: Steve Moore https://6sigma.com/statistical-process-control-why-you-should-care/#comment-24563 Tue, 04 May 2010 13:14:36 +0000 https://opexlearning.com/resources/241/statistical-process-control-why-you-should-care#comment-24563 Deming Phantom, you are correct. Even this article eludes to the normal distribution being connected to the control chart. IT IS NOT!!! The author needs to actually READ Walter Shewhart’s work. The normal distributin is neither a requirement nor a consequence of a process being in a “reasonable degree of statistical control.” Deming was correct in stating that most of what is taught in most courses is WRONG!!!!

]]> By: Deming Phantom https://6sigma.com/statistical-process-control-why-you-should-care/#comment-24562 Fri, 09 Nov 2007 23:37:14 +0000 https://opexlearning.com/resources/241/statistical-process-control-why-you-should-care#comment-24562 About SPC books, I’m sorry to tell you, as I said on my blog ( http://statistical-process-control.blogspot.com/2007/10/statistical-method-from-viewpoint-of.html ), that “nearly all of the books about Statistical Process Control are quite awful. They contain errors, poor examples, and promote bad practices. Except for a few that may still exist, there is only one book one can recommend for sure: it’s “Statistical Method from the Viewpoint of Quality Control” by Walter A. Shewhart, the original founder of Statistical Process Control.

If you don’t believe me, Deming said:
“The problem is that most courses teach what is wrong.”
— W. Edwards Deming (see Deming’s Quotes http://w-edwards-deming.blogspot.com/2007/11/edwards-demings-quotes.html )

]]> By: Mark Graban https://6sigma.com/statistical-process-control-why-you-should-care/#comment-24561 Wed, 08 Nov 2006 13:38:57 +0000 https://opexlearning.com/resources/241/statistical-process-control-why-you-should-care#comment-24561 An outstanding book on this topic is Donald Wheeler’s “Understanding Variation.” It’s a short, approachable book for being about statistics. What’s great about the book is that it’s about SPC as applied to business metrics and data. You’ll never view comparisons like “up 10% over last year” the same again. This book is simply the most impactful business book I’ve ever read (and re-read).

]]> By: james https://6sigma.com/statistical-process-control-why-you-should-care/#comment-24560 Tue, 07 Nov 2006 17:21:20 +0000 https://opexlearning.com/resources/241/statistical-process-control-why-you-should-care#comment-24560 Great article Peter! I love this stuff.

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