R help - Mar 2012 - binomial sample size calculation

Hi everyone.


I need to do a sample size calculation for a one sample based on a CI interval
of +- 5% of the proportion, we expect to have a rate of 0.07 based on similar
studies. I have looked at the pwr-package as well as the power.prop.test
function, but I can't see how to make either do what I need. Could anyone
point me to a function, or explain how to do this will the functions in pwr?



Regards,

Rhyd



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On Mar 28, 2012, at 4:26 PM, McGuire, Rhydwyn wrote:
> Hi everyone.
> 
> 
> I need to do a sample size calculation for a one sample based on a CI
interval of +- 5% of the proportion, we expect to have a rate of 0.07 based on
similar studies. I have looked at the pwr-package as well as the power.prop.test
function, but I can't see how to make either do what I need. Could anyone
point me to a function, or explain how to do this will the functions in pwr?
> 
> 
> 
> Regards,
> 
> Rhyd


Hi,

You might want to review:

  http://tolstoy.newcastle.edu.au/R/e16/help/11/11/0291.html

for pointers and the basic methodology.

Regards,

Marc Schwartz