What is the formula for Control Chart Sigma when you do a capability analysis after you perform a presummarize control chart<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
Re: What is the formula for Control Chart Sigma when you do a capability analysis after you perform a presummarize control chartI 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:
