User's Manual

95
Complex Samples Sampling Wizard
Figure 13-2
Sampling Wizard, Design Variables step (stage 1)
E Select County as a stratification variable.
E Select Township as a cluster variable.
E Click Next, and then click Next in the Sampling Method s tep.
This design structure means that independent samples are drawn for each county. In this stage,
townships are drawn as the primary sampling unit using the default method, simple random
sampling.