RE: Derivation of d2 from Range Distribution

Subject: RE: Derivation of d2 from Range Distribution
From: "Alson Look" <alson_look@yahoo.com>
Date: Wed, 15 Feb 2006 20:07:46 -0700
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Hi,

Tippett wrote a paper in 1925 and E Pearson followed with a paper in 1932
developing d2.  (Biometrika)
It is of interest that Kendall and Stuart vol 1 (Advanced Theory of
Statistics 5th edition)give an upper bound for d2: 1.155 for n = 2.  Not
much different from the 1.128 we are accustomed to using in a mR chart.

Thanks,
 
Alson C H Look
alson_look@yahoo.com

References:
- Re: Derivation of d2 from Range Distribution
  - From: John <jsdwd@ispwest.com>

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