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2008 Jul 31
2
stats question
...pilot study was conducted a few weeks ago and found?8/140 (around 6%) incidence in population A. Population B was not sampled. Assuming this is (about) the right proportion in the Population A what?is the sample size I need?for population A and B in the main study, in order to have power of 80% to idenitfy significant?differences? I would expect the incidence in population B to be around 10% compared to the 6% of the Population A. Any suggestions? How can I do this in R? ? Jason __________________________________________________________ Not happy with your email address?. Get the one you real...