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The problem of estimation of the proportion of units with a given attributein a~finite population is considered. From the population a sample is drawn dueto the simple random sampling without replacement. There are limited funds forconducting survey sample. Suppose that the population is divided into twostrata. The question now arises: how should sample sizes be chosen from eachstrata to obtain the best estimation of proportion without exceeding the budgetplanned. In the paper it is shown, that with the appropriate sample allocationthe variance of the stratified estimator may be reduced up to 30% off of thestandard, unstratified estimator.

Cost Issue in Estimation of Proportion in a Finite Population Divided Among Two Strata