user manual

110
Chapter 13
Figure 13-18
Sampling Wizard, Design Variables step (stage 2)
E Select District as a stratification variable.
E Select City 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 district. In this stage,
cities are drawn as the primary sampling unit using the default method, simple random sampling.