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help sampsi
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HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Paddy Woodburn
Gesendet: Montag, 30. November 2009 16:57
An: [email protected]
Betreff: st: Sample size to detect a rare response
Dear Statalist,
If you wanted 90% power to detect at least one positive result for a rare
condition (expected proportion P) in a population, how would you calculate
how many people you would need to test? Is there a command for this?
Best regards,
Paddy
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