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st: testing linear combination of means


From   "Rubil Ivica" <[email protected]>
To   <[email protected]>
Subject   st: testing linear combination of means
Date   Thu, 22 Nov 2012 14:23:38 +0100

Dear Statalist members:

Suppose there are four variables: var1, var2, var3, var4. I need to test
whether

0.5 * [mean(var1) - mean(var2)] - 0.5 * [mean(var3) - mean(var4)] 

is significantly different from zero.

Is there any idea how to perform the test?

Thanks in advance,
Ivica









--
Ivica Rubil
Ekonomski institut || The Institute of Economics, Zagreb
Trg J. F. Kennedyja 7, 10 000 Zagreb, Croatia
tel. +385-1-2362-269 || fax. +385-1-2335-165
[email protected] || www.eizg.hr


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