Displaying 1 result from an estimated 1 matches for "xbark".
Did you mean:
xbar
2009 Jan 17
2
Confidence Interval
I am new to R and Im some trouble with the following question...
Generate 100 standard normal N(0,1) samples of size 100, X1(k),...,X100(k)
where k=1,...,100 (The k is and indicie in brackets)
Calculate the sample mean for each sample.
For each sample mean Xbark the 0.95-confidence interval for the mean mew=0
is given by...
Ik= ( Xbark plus or minus 1.96/10)
Find the number of intervals such that 0 does not belong to Ik. How many of
them do you expect to see?
Well so far I have come up with...
N<-100; Nsamp<-100
A<-matrix(rnorm(N*Nsamp,0,1),n...