Did you mean a mean test power analysis?
Take a look of -sampsi-
R.
----- Original Message -----
From: "stata_user stata_user" <[email protected]>
To: <[email protected]>
Sent: Friday, January 26, 2007 4:57 PM
Subject: st: power calculation in a case control design
Dear All,
I have a case control design with 83 cases and 139 controls.
I am intersted in the power of two sided 5% (or 1 sided) test to detect
an approximate relative risk of less than 4.
Is there any possibility to have a solution using stata?
Thanks a lot
Sami
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