The SURVEYMEANS Procedure

The SURVEYMEANS procedure estimates characteristics of a survey population by using statistics computed from a survey sample. It enables you to estimate statistics such as means, totals, proportions, quantiles, geometric means, 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. For more information, see Fuller (2009); Lohr (2010); Särndal, Swensson, and Wretman (1992); Wolter (2007).