Stratified random sampling is the process of creating subgroups in a dataset according to various factors such as age, gender, income level, or education. Stratified random sampling involves the ...

The following PROC SURVEYSELECT statements select a probability sample of customers from the Customers data set according to the stratified sample design. title1 'Customer Satisfaction Survey'; title2 ...

Sequential random sampling controls the distribution of the sample by spreading ... chooses a starting unit from the entire stratum (or frame, if the design is not stratified). Using this unit as the ...