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aravindan880
Community Trekker

What is the formula for Control Chart Sigma when you do a capability analysis after you perform a presummarize control chart

11303_JMP Capability training.jpg

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txnelson
Super User

Re: What is the formula for Control Chart Sigma when you do a capability analysis after you perform a presummarize control chart

I have scanned the JMP Book "Quality and Process Methods" and did not find a definitive answer, but my best estimation is that it is the In-Control Sigma.  Here is an excerpt from the book:

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Jim
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