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Re: st: CI for a difference in proportions

From   "Joseph Coveney" <>
To   "Statalist" <>
Subject   Re: st: CI for a difference in proportions
Date   Thu, 28 Feb 2008 10:40:46 +0900

Antoine Terracol  asked about obtaining CI for a difference in independent
proportions and Roger Newson offered two alternatives.  A third alternative
is -rdci-, which is downloadable from SSC.  It offers several alternative
CIs of differences in independent proportions.  It makes the upper and lower
confidence limits available as return scalars.  I don't know how the
coverages of -rdci-'s various CIs compare with those returned by -somersd-.

Joseph Coveney

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