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RE: st: RE: Testing equality of means

From   "Nick Cox" <[email protected]>
To   <[email protected]>
Subject   RE: st: RE: Testing equality of means
Date   Tue, 14 Oct 2003 16:21:01 +0100

Jules Reinhart Elkins
> But doesn't that test one group against one other group, 
> rather than all
> three together? 

No. You can have three groups as defined by a categorical variable. 
As far as -anova- is concerned, the three groups have the same 

> Is there not a command to generate an 
> F-statistic that
> says these are or are not stistically different?

I wouldn't word it in this way, but my answer 
remains the same. For what appears to be your 
problem, -anova- or -oneway- may be appropriate. 

[email protected] 

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