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st: power calculation


From   htzavara@med.uoa.gr
To   statalist@hsphsun2.harvard.edu
Subject   st: power calculation
Date   Sun, 11 Sep 2005 14:01:29 +0300

-- 
helllo!

i want to calculate the power of a case-control study. The test which 
performed in this study was a Student's t-test, a Mann Whitney test, and three 
chi-square tests. How will i perform the power analysis? 

thanks a lot in advanced!

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