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st: R: Difference of means and t-test
From
"Carlo Lazzaro" <[email protected]>
To
<[email protected]>
Subject
st: R: Difference of means and t-test
Date
Sun, 13 Jun 2010 08:15:41 +0200
For more details on how to perform a multiple-comparison test with the
apposite corrections, Mmolina may want to take a look at:
- help oneway -
HTH and Kind Regards,
Carlo
-----Messaggio originale-----
Da: [email protected]
[mailto:[email protected]] Per conto di
[email protected]
Inviato: sabato 12 giugno 2010 23.41
A: [email protected]
Oggetto: st: Difference of means and t-test
Dear Statalist,
I am working with three different samples.
When I deal with two of them, I can calculate the difference of means and
t-test by doing:
ttesti obs1 mean1 std1 obs2 mean2 std2, unequal
As I have three groups, I am also interested in testing the null: mean1 =
mean2 = mean3 , under the alternative that at least one mean is different.
Could you please give me some advice?
Thanks in advance.
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