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Re: st: confidence interval for median


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: confidence interval for median
Date   Sun, 10 Aug 2008 07:22:29 +0100 (BST)

--- moleps islon <moleps2@gmail.com> wrote:
> You state that jackknife is inappropriate. Principles of medical
> statistics, feinstein 2002 claim the contrary-I have no clue what is
> right..

I learned that from Efron, B. and Tibshirani, R. (1993). An
Introduction to the Bootstrap. Chapman & Hall/CRC. The logic is that
the statistic needs to be a smooth function of the data in order for
the jackknife to work, and the median obviously is not a smooth
function of the data.

-- Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


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