[PDF] Top 20 Modified Ratio Estimators of Population Mean Based on Ranked Set Sampling

... rank set sampling (RSS) to estimate the population ...sample mean under RSS is unbiased estimator of population ...sample mean is not only unbiased estimator of population ... See full document

... rank set sample where 4 , 5 be the 78 order statistics in the 78 sample for auxiliary variable ‘X’ and study variable ‘Y’, respectively ...ratio estimators. To this end, Samawi and Muttak (1996) ... See full document

... improved ratio type estimators of population mean, Yan and Tian (2010), suggested the estimators of population mean using coefficient of skewness of auxiliary variable, ... See full document

... for population mean based on RSS is at least as efficient as the esti- mator based on SRS with the same number of measurements even when there were ranking ...extreme ranked set ... See full document

... of population mean. Ratio method of estimation is one such example which utilizes the information on auxiliary variable 𝑋𝑋 , which is positively correlated with the variable of interest 𝑌𝑌, in order ... See full document

... efficient estimators for the population mean has been widely discussed by Several researcher such as Cochran (1940), Kadilar and Cingi (2004, 2006)), Murthy (1967), Rao (1991), Singh and Tailor ... See full document

... the ratio estimator of the population mean using a multiplicative bias correction ...existing estimators for simulated data and real data ... See full document

... of mean and median estimators based on MBRSS and TBRSS with respect to SRS are reported in Tables17-18 ...the mean and median estimators based on MBRSS scheme gives efficient ... See full document

... maximum ranked set sampling procedure with unequal samples (MRSSU) is pro- ...and modified maximum likelihood estimator are obtained and their properties are studied under exponential ...These ... See full document

... of sampling is to estimate the population mean of the study variable on the basis of selecting a random sample } of N distinct and identifiable denote the study (auxiliary) variable taking .... ... See full document

... efficient estimators produced using the RSS as well as several recent modifications, the cost of such sampling schemes is considered a major pitfall against these approaches compared to the traditional ones ... See full document

... root mean square errors (RMSEs) and the bias values are obtained for the estimators based on 10,000 samples of sizes n = 10, 20, 30 with window sizes 1 ≤ m ≤ 5, 1 ≤ m ≤ 10 and 1 ≤ m ≤ 15, ... See full document

... random sampling without sampling scheme. Let 𝑋̅ and 𝑌̅ be the population means of the auxiliary and the study variable respectively, and let 𝑥̅ and 𝑦̅ be respective sample means and both unbiased ... See full document

... the population mean of normal distribution is considered and compared with estimators based on simple random ...the mean based on MERSS is given in Section ...Bayes ... 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, ...of ... See full document

... The ratio estimator given in (1) is used for improving the precision of the estimate of the population mean as compared to us ual sample mean estimator whenever a positive correlat ion e xists ... See full document

... the ranked values and the rank of the average values for the thirty three simulated populations and all of the five ...PIC-III estimators remain fixed throughout the thirty three ...NIC estimators ... See full document

... suggested estimators using some known population parameters of an auxiliary ...of estimators in simple random ...random sampling. Singh et al. (2008) suggested class of estimators using ... See full document

... Munoz and Rueda (2009) used relative bias (RB) and the relative root mean square error (RRMSE), for the comparison of different estimators. For the more detail see Chambers and Dunstan (1986), Rao et al. ... See full document

... Cochran [2] utilized the positively correlated auxiliary variable and for the first time proposed the usual ratio estimator of population mean of the study variable. Later Robson [10] and Murthy [7] ... See full document