Re: betainc function

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Fri Jun 17 2011 - 16:18:12 MDT

The degrees of freedom and t-value determine the p-value.

The 0.5 stays the same.

See: http://www.danielsoper.com/statcalc/calc08.aspx
for a visual.

Good luck
On 6/17/11 4:06 PM, Katinka Bellomo wrote:
> Hi,
>
> I am using the betainc function in order to determine probabilities for
> t-Student values derived from a regCoef.
> I don't understand how the parameter x (*betainc*(x,a,b) ) should be
> changed. I couldn't find an answer among previous inquiries.
>
> In the examples
> (http://www.ncl.ucar.edu/Document/Functions/Built-in/betainc.shtml) it
> is always set to be equal 0.5, is this related to 95% of confidence?
> What should I put if I want a 99% of confidence?
>
> Thanks
>
> Katinka
>
>
>
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Received on Fri Jun 17 16:18:23 2011

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