[R] ANOVA and LSD TEST - contrasting results

[peter dalgaard]

On Nov 19, 2011, at 15:37 , Roberto wrote:

> First of all, thank you for the reply to my topic.
> 
> Anova summary has shown no significative difference into Treatment (Pr
> 0.374), otherwise LSD Test has shown difference between 2 Treatment.
> I suppose that's something strange.
> 

It isn't. You need to read up on "familywise error rate" and its connection to LSD and Tukey HSD tests (Google gets you there soon enough; I doubt people in here will rewrite textbook material just for you).

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com