As Donald has already pointed out, what I think you want is the p-value, not the 
significance level. Given that, Excel has a F-distribution so you don't need to resort 
to tables:

FDIST(f,degrees_freedom1,degrees_freedom2)

gives the probability that F > f.

degrees_freedom1  is the numerator degrees of freedom.
degrees_freedom2  is the denominator degrees of freedom.

The 2Num workbook in the freeware version of XLStatistics downloadable from
http://www.man.deakin.edu.au/rodneyc/XLStats.htm
automatically gives out the p-value, too. It just uses the built in Excel functions.

Rodney

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Rodney Carr
School of Management Information Systems
Deakin University
PO Box 423
Warrnambool VIC 3280
Australia
email: [EMAIL PROTECTED]      phone: + 61 3 5563 3458
mobile: 0417 307 692       fax: + 61 3 5563 3320
www: http://www.man.deakin.edu.au/rodneyc



-----Original Message-----
From:   Ailc1 [SMTP:[EMAIL PROTECTED]]
Sent:   Sunday, January 30, 2000 12:50 AM
To:     [EMAIL PROTECTED]
Subject:        Shareware for Computing Significance Level?

I am using Excel to perform a linear regression analysis.  Excel does not
compute significance level. At best, I have to use computations it makes of F,
etc. and then go to hard copies of F and Student's t distribution tables.

Anyone know of shareware that computes significance level given degrees of
freedom v1 and v2?


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