Re: [R] R function which finds confidence interval for binomial variance

2008-09-25 Thread Ralph Scherer
Hello Robert, would it be an idea to construct CI's with bootstrap methods? If yes, you can use package "boot", based on the book of Davison & Hinkley or the package "bootstrap", based on the book of Efron &Tibshirani. You can put the estimator inside for argument "theta". Bests, Ralph Am Thurs

Re: [R] R function which finds confidence interval for binomial variance

2008-09-25 Thread Robert A LaBudde
Thanks Ralph, Moshe and [EMAIL PROTECTED] for you helpful comments. Using bootstrap (e.g., 'boot' + boot.ci()) for the confidence interval on the variance is not very accurate in coverage, because the sampling distribution is extremely skewed. In fact, the 'BCa' method returns the same result