出版社：International Institute for Science, Technology Education
摘要：This paper considers the problem of estimating the population mean in two-stage sampling with unequal first stage unit (fsu) for ratio, product and regression estimators when the population mean of the auxiliary variable is not known in advance. The ratio, product and regression estimators are suggested and studied their properties. It is shown that under certain conditions the suggested estimators are more efficient than than Sukhatme et al (1984) estimators. Numerical illustration is given in support of present study.
关键词：Auxiliary variate; study variate; mean squared error; two-stage sampling; ratio estimator; product estimator; regression estimator. Mathematics Subject Classification 62D05.
