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st: Test for statistical significance


From   "Cornelius Nattey" <cornelius.nattey@nioh.nhls.ac.za>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Test for statistical significance
Date   Tue, 31 Aug 2010 16:24:51 +0200

Dear All,
I have two datasets of manganese blood levels taken in August and
November 2005. They were from the same community but mainly different
people in the community. There may have been some repeats but I do not
know how many if there were any. I have treated them as independent and
not paired tests.

What test should be applied to see if there is a statistically sig
difference? Is there a difference?

Thanks very much
Cornelius


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