Date:         Mon, 27 Oct 2003 10:31:07 +0100
Reply-To:     fvillamayor-research@ferrergrupo.com
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Frederic Villamayor <fvillamayor-research@ferrergrupo.com>
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Dear co-listers,
How can I change the null and alternative hypotheses that are usual to 
SPSS procedures to the more relevant ones if the objectives of the tests 
are to prove the safety of a treatment:
        H0: meanA - meanB >= delta
        H1: meanA - meanB < delta.
Is it possible or I will need some ad hoc software?
Any comment will be greatly appreciated.

Frederic Villamayor
Departamento de Toxicología
CIDF Ferrer grupo