Generalized Chain Ratio Regression and Chain Regression Estimators for the Population Mean Using Two Auxiliary Characters in the Presence of Non-response
نویسندگان
چکیده
Generalized chain ratio regression and chain regression estimators for the population mean using two auxiliary characters have been proposed in the presence of non-response. The expressions for the mean square error (MSE) of these estimators have been obtained for fixed sample sizes ( n′ and n ) and also for fixed cost 0 C C ≤ .The optimum values of the first phase sample size n′ and the sub sample of size n have been obtained for the fixed cost 0 C C ≤ and also for the specified precision V = 0 V ′ .
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تاریخ انتشار 2014