To quote one of the previous answers you've got: The formula you're using is the TV. The one binom.test() uses is the ballpark. Take your pick.
Andy From: Ethan Johnsons > > Thank you for the info. It helps. > > After all, it would be: > > > 0.1304348-1.96*(sqrt((0.1304348*(1-0.1304348))/46)) > [1] 0.03310968 > > 0.1304348+1.96*(sqrt((0.1304348*(1-0.1304348))/46)) > [1] 0.2277599 > > Does R have a function for the calculation above? > > ej > > > On 10/20/06, Francisco J. Zagmutt <[EMAIL PROTECTED]> wrote: > > Ethan, > > > > You need to explain why you think this is "not the right > function to > > use". R is doing exactly what you are asking it to do. Now > is up to > > you to choose the methodology you feel is correct. > > For a good discussion on your particular issue I recommend you the > > following > > reference: > > > > A. Agresti and B. A. Coull, "Approximate is better than "exact" for > > interval estimation of binomial proportions," The American > Statistician, vol. 52, no. > > 2, pp. 119-126, 1998. > > > > Once you figure out the "right function to use" see if the > function is > > available in R. If not readily available, and if after > searching through > > R's documentation and the forum archives you still can't > find a way to > > perform the calculation, then is time to get back to this forum. > > > > Regards, > > > > Francisco > > > > > > Dr. Francisco J. Zagmutt > > College of Veterinary Medicine and Biomedical Sciences > Colorado State > > University > > > > > > > > > > >From: "Ethan Johnsons" <[EMAIL PROTECTED]> > > >To: [email protected] > > >Subject: [R] binom.test > > >Date: Fri, 20 Oct 2006 17:18:02 -0400 > > > > > >A quick question, please. > > > > > >46 e coli lab samples are tested, 6 of them returned positive. > > > > > >So, the best point estimate for p is 6/46 = 0.1304348. > > > > > >For a 95% CI for p, I thought binom.test would give me the correct > > >result, but it seems it is not the right function to use. What is > > >the R function for this? > > > > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > > ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments,...{{dropped}} ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
