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Re: st: Numerous t-tests


From   "Michael Blasnik" <michael.blasnik@verizon.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Numerous t-tests
Date   Wed, 26 Oct 2005 11:51:49 -0400

"Ronán Conroy" <rconroy@rcsi.ie> wrote:

-regress- is a lot faster than t-test, and the output is easier to read, IMO. The coefficient and its confidence interval represent the difference in means and its CI.
While I agree that regress is faster and often preferred to t-tests, one should be aware that regress will assume equal variances for the two groups identified by the dummy variable. That assumption may or may not be what you want.

Michael Blasnik
michael.blasnik@verizon.net

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