R-beta: CI for median in funtion boxplot

Rick White (rick@stat.ubc.ca)
Sat, 04 Apr 1998 00:59:07 +0000


Date: Sat, 04 Apr 1998 00:59:07 +0000
From: Rick White <rick@stat.ubc.ca>
To: r-help@stat.math.ethz.ch
Subject: R-beta: CI for median in funtion boxplot

I noticed that boxplot computes a 95% CI for the median by using
median +/- 1.58*IQR./sqrt(n)

Where does the 1.58 constant come from?

--
Rick White
Statistical Consultant
U.B.C. Vancouver
B.C. Canada
rick@stat.ubc.ca



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