The problem of finding unbiased ratio estimators of the population total of some character with the help of an auxiliary character has drawn much attention in recent years. Some references to this are ...
Sankhyā: The Indian Journal of Statistics, Series B (1960-2002) Vol. 55, No. 3, Special Issue Dedicated to the Memory of P. C. Mahalanobis (Dec., 1993), pp. 385-392 (8 pages) The purpose of this paper ...
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