Re: One tailed vs. Two tailed test

[Rich Ulrich]

On 16 Mar 2001 20:32:40 -0800, [EMAIL PROTECTED] (dennis roberts) wrote:

[ ... ]
> seems to me when you fold over (say) a t distribution ... you don't have a 
> t distribution anymore ... mighten you have a chi square if before you fold 
> it over you square the values?
[ ... snip, rest ]

You are forgetting?   normal  z^2  is chi^squared.

And  t^2  with xxx degrees of freedom, is equal to F(1,xxx) d.f.

-- 
Rich U.
http://www.pitt.edu/~wpilib/index.html


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