[R] confidence interval for small non iid sample

Kay Cichini Kay.Cichini at uibk.ac.at
Thu May 6 17:23:03 CEST 2010


can someone tell me if there is a way to estimate a confidence interval for
a small non iid sample. 
i computed a stratified boot.ci but i think it is not reasonable in the case
of such a small sample - are there any alternatives, can a conf.interval in
this case be estimated at all?

for example:
data (n = 10) nested within strata (1-3), like:

data = c(0.827189928, 0.728301515, 0.514646038, 
0.600658064, 0.558828789, 0.553728503, 0.755797662, 0.736486515, 
0.773758313, 0.722529142)

strata = as.factor(c(rep(1,2),rep(2,4),rep(3,4)))

thanks for any hints,

Kay Cichini
Postgraduate student
Institute of Botany
Univ. of Innsbruck

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