Abstract
Abstract A procedure for allocation of sample sizes to different strata consists of drawing a preliminary sample of fixed size from each stratum to estimate the strata variances and test their homogeneity. If the strata variances are found homogeneous, the sample sizes to be drawn from different strata are allocated according to proportional allocation; otherwise, they are allocated according to Neyman allocation using estimated variances. The efficiency of the proposed allocation, based on preliminary test of significance with respect to proportional allocation and modified Neymanallocation, is investigated.
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