Re: Semantics and 6 sigma

[GrantBlair@aol.com]

In a message dated 10/3/2000 2:47:59 PM Eastern Daylight Time, 
jmegogue@wanadoo.fr writes:

<<  This level involves understanding of the control chart
 purpose, but unfortunately many statisticians, including six sigma
 supporters, don't have a clear idea of this purpose. >>
The purpose of a control chart is to seperate common cause from special
cause variation. Until this is done, any attempt to reduce variation in a 
process will only result in making it worse. It matters not if the attempt is 
made
by six sigma supporters or by Deming philosophers.
Therefore, your original statement that six sigma only considers
distribution theory and ignores control chart theory is incorrect, both in 
fact, and in application.

GrantBlair@aol.com
Ninety Six SC
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