[PDF] Top 20 Modified Ratio and Product Estimators for Estimating Population Mean in Two-Phase Sampling

... for estimating population mean, sample mean is the most appropriate ...the ratio type estimators are used for improved estimation of population ...mean. ... See full document

... of estimators using multiple auxiliary attribute in sin- gle- and double-phase ...to ratio estimator which was generalization of Naik and Gupta [12] estima- tor in single- and double-phase ... See full document

... According to Table 1 the proposed Ratio-cum-product estimator using multiple auxiliary variables in two phase sampling has the highest Percent relative efficiency compared to mean per un[r] ... See full document

... applied ratio estimation to derive efficient ratio-type estimators of the population vari- ance by modifying the structure of existing estimators such as modified ... See full document

... of population parameter(s). Ratio, product and regression methods are good examples in this ...of population mean of ...the estimators of finite population ...situations ... See full document

... of estimators for estimating the finite population mean, incorporating partial auxiliary information on one variable and complete auxiliary information on second variable under ... See full document

... of ratio estimator y R d   ˆ 1 (say), the product estimator y P d   ˆ 2 , exponential chain type ratio estimator y Re d   ˆ 3 , exponential chain type product estimator y Pe d   ˆ 4 , ... See full document

... lation ratio (R) of the population means of two variables (y and x) under simple random sampling without re- placement (SRSWOR) scheme, using variable transformation of the auxiliary variable, ... See full document

... of population mean using information on auxiliary attribute and the estimation of population mean in double sampling in ratio ...proposed modified ratio estimator ... See full document

... proposed ratio and product type exponential estimators while Singh and Vishwakarma [12] extended the exponential ratio and product type estimators to double-phase ...of ... See full document

... paper, two modified factor-type estimators with two auxiliary variables for population mean have been ...suggested estimators have been derived up to first order ... See full document

... of estimating the population mean in the presence of an auxiliary variable has been widely discussed in finite population sampling ...many ratio, product and regression ... See full document

... separate-type estimators for estimating the popula- tion ratio of two variables in post-stratified sampling, using variable ...proposed estimators were obtained up to first order ... See full document

... finite population U = ( U U 1 , 2 ,..., U N ) consists of N units. Suppose two auxiliary variables x 1 and x 2 are observed on U i ( i = 1, ...random sampling without replacement (SRSWOR) from the ... See full document

... in Two-phase sampling has been developed and recommended using multi-auxiliary variables for Full Information Case (FIC), Partial Information Case I (PIC-I) and No Information Case (NIC) ...PIC-I ... See full document

... finite population mean using a new regression type estimator with two auxiliary variables for single-phase sampling and investigated its finite sample ...existing estimators that ... See full document

... some population parameters such as the mean or the variance of a study ...of ratio estimation was introduced in sample survey by Cochran ...the product estimator for negatively corre- lated ... See full document

... unknown population parameter of interest. Ratio, product and regression methods of estimation are good examples in this ...of estimating the mean of a survey variable when auxiliary ... See full document

... generalized ratio-type estimator based on ranked set sampling (RSS) is proposed for estimating population mean using the known population parameters of auxiliary ...The ... See full document

... we modified twenty-eight ratio type estimators for estimation of population mean of the study variable earlier suggested by Gupta and Yadav ([GY17]) using product of sample size ... See full document