search for: ci95

....) As an example, I include x=6 and n=42 which has a mean proportion of 0.115. When I calculate the 95% CI using the normal approximation by hand (and no continuity correction) I get (0.028, 0.202). The exact binomial CI from binom.test() is (0.044, 0.234). With correct=FALSE prop.test produces CI95 = (0.05396969, 0.22971664) which is neither of these. With correct=TRUE it produces (0.04778925, 0.2412937) This seems reasonably like a normal approximation 95% CI (which I presume is what is used by prop.test()) of the true binomial but I did not actually check it by hand. BUG summary. The pr...

Dear All I am trying to graph a proportion and CI95% by a factor with ooplot (any other better solution ?) It works well until I try to add the confidence interval. this is the error message and and a description of the data: > dat1 PointEst TT1 1 3.6 TT2 2 5.0 TT3 3 5.8 TT4 4 11.5 TT5 5 7.5 TT5 6...

Hi everyone, Does anybody knows if there is an equivalent R function that gives the same outcome as in "Explore" function in SPSS ? (Analize->Descriptive Statistics->Explore) It does a categorical vs quantitative variables analysis. ( But not linear regression) I need to compare intragroup (categorical variable with 4 values) means and confidence intervals of a quantitative