Rao, Hartley and Cochran (RHC, in brief) (1962) gave a useful method of sample selection with unequal probabilities from a finite population and an unbiased estimator for the population total along with a uniformly non-negative unbiased estimator for its variance. Ohlsson (1989) has recently ...
(Int J Appl Comput Math 1(2), 1–10, 2015) introduced an exponential ratio cum dual to ratio type of estimator for the population mean and compared the performance of the several estimators using the derived expression of MSE. But unfortunately, the expressions of bias and MSE of their ...
Abadir, Karim M., Walter Distaso, and Liudas Giraitis, 2008, "Two estima- tors of the long-run variance: beyond short memory," second revision Journal of Econometrics.Abadir , K. M., Distaso, W. and Giraitis, L. (2009). Two estimators of the long-run variance: beyond short ...
If there are two unbiased estimators of a population parameter, the one whose variance is smaller is said to be:A.a biased estimator.B.relatively efficient.C.consistent.D.relatively unbiased.的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是
We present the asymptotic properties of double-stage quantile regression estimators with random regressors, where the first stage is based on quantile regr... TH Kim,C Muller - The Econometrics Journal 被引量: 127发表: 2004年 Simplified formulae for the BIQUE estimation of variance components in...
This study suggested the generalized regression cum ratio estimators for estimating the population variance of the variable under study. The bias and mean squared error of the suggested estimator are derived under simple random sampling without replacement (SRSWOR) scheme. Empirical study has been ...
Hence, we propose a correction of bias of the latter. Moreover, we reexamine the properties of variance of the initial estimators: due to their construction, their variances are minimal, each over different parameter ranges, θRH performing better for low differentiation and θWC for high ...
A generalized ratio cum product estimator for population mean in simple random sampling was developed by Singh et al. [6]. Shabbir [7] produces the estimators of population mean under stratified two phase sampling. In the literature ([8,9,10,11]), the use of two phase sampling under two...
In this work, we prove the consistency of the Horvitz-Thompson estimator and of associated variance estimators for a general class of two-stage sampling designs, under mild assumptions. We also study two-stage sampling with a large entropy sampling design at the first stage, and prove that the...
SuperpopulationTwo-stage samplingVariance estimationEstimators for finite population parameters and their variances in two-stage sampling have been developed by using the linear least-squares prediction approach in a recent article by Royall (1976). This article considers a special case of the super...