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confidence intervals for the difference between group means

varin sacha 
Dear R-experts,

Using the bootES package I can easily calculate the bootstrap confidence intervals of the means like in the toy example here below. Now, I am looking for the confidence intervals for the difference between group means. In my case, the point estimate of the mean difference is 64.4. I am looking at the 95% confidence intervals around this point estimate (64.4).

Many thanks for your response.

############
library(bootES)
a<-c(523,435,478,567,654) 
b<-c(423,523,421,467,501)
bootES(a)
bootES(b)
############

Thread (3 messages)

varin sacha confidence intervals for the difference between group means Aug 4 Matthias Kohl confidence intervals for the difference between group means Aug 4 varin sacha confidence intervals for the difference between group means Aug 17