Rich Ulrich wrote: > > On Mon, 11 Feb 2002 13:56:46 +0100, "nikolov" > <[EMAIL PROTECTED]> wrote: > > > hello, > > > > i want to test the difference between two proportions. The problem is that > > some elements of these proportions are dependent (i can not isolate them). > > That is, the t-statistics does not work. How could i do? Do other kind of > > tests exist? Is there a book or a paper on the subject? > > Taking your questions in reverse order -- > > I don't know of a book or paper about general dependencies, > but those concerns are implicit in "estimation theory". > > If dependency is what makes the t-test hard to use, you will > have trouble with everything else that is common, too. > > What you could do is -- > (a) Use the t-test anyway, if the correlations are positive: > because the bias would just reduce the power of the test.
and the level... Glen ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at http://jse.stat.ncsu.edu/ =================================================================