Variance Estimation

If the variance method is not Taylor series or if the NOMCAR option is used, by default, PROC SURVEYMEANS displays the following variance estimation specifications in the "Variance Estimation" table:

• Method, which is the variance estimation method

• Number of Replicates, which is the number of replicates if you specify the VARMETHOD=BRR or VARMETHOD=JACKKNIFE option

• Hadamard Data Set, which is the name of the SAS data set for the HADAMARD matrix if you specify the VARMETHOD=BRR(HADAMARD=) method-option

• Fay Coefficient, which is the value of the FAY coefficient if you specify the VARMETHOD=BRR(FAY) method-option

• Replicate Weights Data Set, which is the name of the SAS data set that contains the replicate weights

• Missing Levels Included (MISSING), if you specify the MISSING option

• Missing Levels Include (NOMCAR), if you specify the NOMCAR option