Suppose that the sample of students described in the previous section was actually selected using stratified random sampling. In stratified sampling, the study population is divided into ...

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 ...

Stratified Random Sampling – If you suspect there ... Using the appropriate sample size formula, it was decided that 174 records needed to be examined. Using the Excel random selection function ...