Confidence Interval for Median

[gjwsas]

Is there a way to construct a confidence interval for a median in SAS. I know how to construct a confidence interval for a mean using PROC UNIVARIATE, but don't see anything similar for the median.

[Doc_Duke]

Because the median is not based on any parametric assumptions about the data (except a continuous distribution), there is no closed form method to get the CI. You can, however, get a CI by bootstrapping. See

http://itl.nist.gov/div898/handbook/eda/section3/bootplot.htm

Google search
bootstrap site:sas.com
for several good articles and a macro.

Doc Muhlbaier
Duke