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Re: Relation between 3 STD and approximated STD from XmR

Subject: Re: Relation between 3 STD and approximated STD from XmR
From: "Balaji Reddie" <balaji-reddie@eth.net>
Date: Thu, 2 Jan 2003 18:37:46 +0530

Could the reason for using the Moving Range deviation in preferance to the
conventional sigma be that we are determining "Common Cause" Variation and
not "Total" Variation ? Just a thought !!

References:
- Re: Relation between 3 STD and approximated STD from XmR
  - From: Alson C H Look <alook@pacbell.net>

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