Overview: SURVEYMEANS Procedure

The SURVEYMEANS  procedure estimates characteristics of a survey population by using statistics computed from a survey sample. You can estimate statistics such as means, totals, proportions, quantiles, and ratios. PROC SURVEYMEANS  also provides domain analysis, which computes estimates for subpopulations or domains. The procedure also estimates variances and confidence limits and performs t tests for these statistics. PROC SURVEYMEANS  uses either the Taylor series (linearization) method or replication (subsampling) methods to estimate sampling errors of estimators based on complex sample designs. The sample design can be a complex survey sample design with stratification, clustering, and unequal weighting. See Lohr (2009), Särndal, Swensson, and Wretman (1992), and Wolter (2007) for more details.