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st: standard error and significance


From   jjc.li@utoronto.ca
To   Statalist <statalist@hsphsun2.harvard.edu>
Subject   st: standard error and significance
Date   Tue, 16 Jun 2009 19:09:20 -0400

Dear all,

Here's a fomula,

Y=1+Rij/(Si*Sj),

where Rij is a coef. abtained form a regression; Si and Sj are obtained form a data set (let's say ten years annual data).

Now, I am going to evaluated Y at the means of Si and Sj. The standard errors of Y can be calculated by SE(Y)=SE(Rij)/SiSj. So How could I determine if the result of Y is siginificant at 5% level, according to its standard error? How to do it by STATA?

Thanks!

Crystal

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