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Education > Statistics > How to calculat...
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How to calculate Chi Square P value when using Crystal Ball

by Guy <gaetanlion@[EMAIL PROTECTED] > Jun 26, 2008 at 10:23 AM

Let=92s say you have 200 data points.  CB comes up with a Chi Square
value.  But, how do you calculate correctly the number of Degrees of
Freedom to come up with a P value.  I personally assumed that CB
treats each data points as a different group.  So, in this case I
would come up with 200 =96 1 =3D 199 groups.  But, if CB actually groups
the data in fewer groups I have way overstated the number of DF and
end up with a P value that is a lot higher.  By doing so, I would have
significantly overstated the fit of the distribution.  However, do you
know for a fact that my assumption is wrong?  Do you know how to
correctly figure out the number of groups?

Thanks for any info on this.

Guy
 




 1 Posts in Topic:
How to calculate Chi Square P value when using Crystal Ball
Guy <gaetanlion@[EMAIL  2008-06-26 10:23:05 

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tan12V112 Thu Dec 4 22:46:48 CST 2008.