[R] results from t-test

Peter Dalgaard p.dalgaard at biostat.ku.dk
Sat May 1 16:58:17 CEST 2004


Jason Turner <jasont at indigoindustrial.co.nz> writes:

> F. Patrick Graz wrote:
> > Greetings,
> > I'm rather new to R, and only just subscribed to the mailing list.
> > I have run into a strange result in a t-test. The data represents
> > the the hypothetical differences obtained for a t-test for dependent
> > samples.
> > All the numeric output looks OK, but the statement that the
> > alternative hypothesis is accepted seems rather strange.
> >
> 
> It doesn't say which hypothesis is accepted - the printed output just
> helps remind you what the alternative hypothesis is.  In this case, a
> p-value of 0.73 means you would be really, really safe sticking with
> the null hypothesis.
> 
> Cheers
> 
> Jason
> (who is deliberately not dragging the professed non-statistician into
> the discussion we've had recently on the merits of p-values).  :)

Oops. Be careful, you very nearly dragged at least one professed
statistician into a sermon about the proper interpretation of
non-significant p-values (absence of evidence, etc.)....

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907




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