Abstract
The interpenetrating sub-sampling procedure with unequal sizes of the samples has been compared with an equicost procedure based on equal sized samples and it has been observed that unequal sized samples lead to more precise estimates of a finite population mean in almost all the cases dealt with in this paper. Simple random sampling has b:en considered throughout and it has been assumed that the cost of the survey is proportional to the number of distinct units in the sample.
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