Ratio-cum-product type estimators in sampling on two occasions with a two-stage design
C.L. Agarwal and F.C. Gupta (1982). Ratio-cum-product type estimators in sampling on two occasions with a two-stage design. Journal of Statistical Research, Vol. 16, No. 1-2, pp. ??-??.
Some four ratio-cure-product type estimators of the population mean are proposed in two stage sampling design over two occasions under some usual conditions. Their biases and variances are worked out to the first order of approximation and the superiority of each among themselves has also been pointed out under respective situations.