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Re: st: RE: How do I obtain confidence intervals for percentiles with survey data ?


From   Steve Samuels <sjsamuels@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: How do I obtain confidence intervals for percentiles with survey data ?
Date   Tue, 30 Mar 2010 00:05:12 -0400

Roger Newson has an approach that works for any quantile, accounts for
clustering and weighting, but ignores stratification.  See:
http://www.stata.com/statalist/archive/2008-12/msg00925.html

One problem with a bootstrap approach is that the weights for each
replicate must be re-normalized so that they add to the population
total.

Steve


On Mon, Mar 29, 2010 at 5:17 PM, Lachenbruch, Peter
<Peter.Lachenbruch@oregonstate.edu> wrote:
> If you can't find anything else, you can bootstrap the percentiles 1000 times and get approximate confidence intervals.
>
> Tony
>
 From:  Liliana Olarte
> Sent: Monday, March 29, 2010 1:44 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: How do I obtain confidence intervals for percentiles with survey data ?
>
> Since I have survey data,  I have to use the command pctile but Stata
> reports the percentile not the conffidence interval, ¿what can I do to
> obtain the confidence interval?


Steven Samuels
sjsamuels@gmail.com
18 Cantine's Island
Saugerties NY 12477
USA
Voice: 845-246-0774
Fax:    206-202-4783

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