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Re: st: Different results for confidence intervals for proportions using "svy: proportion" and "espost svy: tabulate" ??


From   Austin Nichols <[email protected]>
To   "[email protected]" <[email protected]>
Subject   Re: st: Different results for confidence intervals for proportions using "svy: proportion" and "espost svy: tabulate" ??
Date   Mon, 9 Sep 2013 11:22:52 -0400

Aldana Rosso <[email protected]>
The user-written prefix command is a red herring. You get different
CIs from -svy:tabulate- and -svy:proportion- as you can see below
(also, methods and formulas are in the manual entries). The
-svy:tabulate- approach makes more sense because it does not assume a
symmetric CI and will not include negative proportions in its CI
(negative proportions make no sense in this context), or proportions
greater than one.

webuse nhanes2b, clear
svy: tabulate houssiz, ci
svy: proportion houssiz

On Mon, Sep 9, 2013 at 8:49 AM, Aldana Rosso <[email protected]> wrote:
> Hi,
>
> I am running the svy proportion command to obtain the confidence intervals
> for a proportion. I realized that I obtained different results using  the
> "official commands: svy: propotion"  and the user written "estpost svy:
> tabulate race". Does someone know why?
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