This example is taken from Levy and Lemeshow’s Sampling of Populations.
page 109 repeated systematic sampling This example uses the wloss2 data set.
proc descript data = wloss2 filetype=sas design = wor means totals; nest _one_ cluster; weight wt1; totcnt m _zero_; var xi; setenv colwidth = 15; setenv decwidth = 3; run; Number of observations read : 18 Weighted count : 162 Denominator degrees of freedom : 5 Variance Estimation Method: Taylor Series (WOR) by: Variable, One. -------------------------------------------------------- | | | | Variable | | One | | | 1 | -------------------------------------------------------- | | | | | XI | Sample Size | 18.000 | | | Weighted Size | 162.000 | | | Total | 729.000 | | | SE Total | 85.949 | | | Mean | 4.500 | | | SE Mean | 0.531 | --------------------------------------------------------