[News]

The purpose of this article is to give you an appreciation of the Quincunx as an educational tool for teaching some of the theory behind the tools and concepts of so-called modern quality management. The Quincunx is often seen in the possession of organizations practicing in-house education of statistical process control (SPC); however, it is seldom utilized for anything beyond a demonstration of the normal distribution. Indeed, the literature itself is virtually devoid of references to the Quincunx beyond this use.

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[sparky]

A very interesting article, well worth a few minutes of your time.

[Lakota]

Originally Posted by sparky

A very interesting article, well worth a few minutes of your time.

Sparky,

Thanks for the recommend to read this article. Glad I did. This was my first intoduction to the Quincunx and the inventor. Qoq -- very impressive/

Left me with a couple of questions.

1. "This demonstration dispels the rumor that at least 20 to 30 data points are needed to calculate useful control limits and confirms the Donald Wheeler arguments." What is Wheeler's argument, are you up on that one?

2. If this fellow feels so strongly about the many training uses of this device as a class room tool -- I wonder why he doesn't write an Interustor's Manula for same?

Thanks again for suggesting we all read this article -- I too agree it is worth a few moments of time investment.

BLessings,
Lakota

[prabh]

maybe this will help http://www.spcpress.com/pdf/The_Final_6_Sigma_Zone.pdf