| Date: | Thu, 27 Apr 2000 11:32:45 -0500 |
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| Reply-To: | Warren Schlechte <wschlech@KTC.COM> |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | Warren Schlechte <wschlech@KTC.COM> |
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| Subject: | Does SAS Help Select Necessary Sample Size |
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| Content-Type: | text/plain; charset="iso-8859-1" |
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I have a repeated measures problem, with multiple control and treatment
sites. I wish to measure the rate of occurrence of a specific genotype
before and after treatment at both control and treatment sites. Is there a
procedure in SAS that would allow me to specify rates and variances for the
different sites pre and post and the power of detection desired and would
output a sample size necessary to satisfy those constraints?
Thanks for any help.
Sincerely,
Warren Schlechte
Heart of the Hills Research Station
HC7 Box 62
Ingram, Texas 78025
Phone: 830.866.3356
Fax: 830.866.3549
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