Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: one tailed F statistics from TEST


From   "Xuefeng (John) Jiang" <jiang@uga.edu>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: one tailed F statistics from TEST
Date   Tue, 31 Aug 2004 07:41:30 -0400

Dear all,

I want to compare the difference between two coefficients from a linear
regression. The STATA command TEST gives me a F statistic from a Wald test.
If I have a direction prediction of the two coefficients, can I convert the
p-vlaue from the F statistics from two tailed to one tailed, despite the F
distribution is not symmetric? Or I have to convert the F into a t
statistics? Thanks.

John

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index