Accuracy investigation of the composite estimators in the case of sample rotation for two-phase sampling scheme

Abstract

In this paper we focus on construction of the combined ratio type estimator of the nite population total and their variances in the case of sample rotation for two-phase sampling scheme. We construct composite estimators of the nite population total without and with the use of auxiliary information known from the previous survey. Two types of sampling design are used for sample selection in each of the phases: simple random sampling without replacement and successive sampling (unequal probability sampling without replacement). A simulation study, based on the real population data, is performed and the proposed estimators are compared.