RE: Rule of thumb for SPC

[Kromkowski@aol.com]

Mr. Buchman noted:

>>The definition of in control is a process defined by data points which
are predictably falling within the control limits to 99.73% probability.<<

no No NO!

Although, with the exception of >>eventually eliminating all variation<<, I 
wouldn't quibble with the "gist" of what you were suggesting.

JDKromkowski
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