Talk:Process capability index/Archives/2017

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This is an archive of past discussions about Process capability index. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page.

2011 2015 2016 2017

Confusing

The definitions of Cp, Cpk here are exactly the same as for Pp, Ppk in the article Process performance index. Are they meant to be the same and just used under different conditions (under statistical control, not under statistical control)? Or are they meant to be different? A statement about this is required. — Preceding unsigned comment added by 217.13.68.110 (talk) 06:55, 18 July 2017 (UTC)