[PDF] Top 20 A class of efficient Ratio type estimators for the Estimation of Population Mean Using the auxilliary information in survey sampling

... the class of ratio type estimators in SRSWOR by using the population deciles and coefficient of skewness as auxilliary informat ion are found more efficient than ... See full document

... of estimation of parameters in the presence of measurement errors. In survey sampling, the properties of data usually presuppose that the observations are the correct measurements on characteristics ... See full document

... and population mean X of the auxiliary variable x is ...classical ratio and product estimators in this situation are respectively defined ... See full document

... to ratio type estimator for improved estimation of population mean of the study ...exponential type ratio and product estimators of population mean ... See full document

... customary ratio estimator, R ˆ . However, the estimator, R ˆ is more efficient than the ratio-type estimator, R ˆ 2 based on the sample mean, x ...that estimators in the proposed ... See full document

... of ratio type estimator to estimate population mean for small area on current occasion in repeated ...The estimation of population mean for small area on current occasion ... See full document

... In survey sampling, when information about all the sampling units is available then it is conventional to esti- mate unknown population mean of study variable using ... See full document

... auxiliary information at the estimation stage in order to improve the precision of an estimator of unknown population parameter of ...interest. Ratio, product and regression methods of ... See full document

... auxiliary information, being constant with unit (e.g. population variance, population mean, population standard deviation, ...of ratio and product type estimators ... See full document

... auxiliary information either at selection stage or on estimation stage, or at both stages, to improve precision of the estimators of the population ...of using the auxiliary variable at ... See full document

... In sampling theory the role of auxiliary information has a great ...that using suitable auxiliary information such as population total, mean, skewness, correlation, attribute ... See full document

... sample survey, the main objective is to obtain the estimators of parameters of interest with increase ...auxiliary information is made through the ratio method of estimation to obtain ... See full document

... the population is large, it is very time taking and costly to get the information on each of the population ...unit. Sampling is a very good alternative to overcome this ...the ... See full document

... the ratio estimators do not work efficiently under situations when the relationship is not linear between the auxiliary and study ...and ratio estimators proposed by (Bahl & Tuteja, ... See full document

... In survey sampling, auxiliary information is used for enhancing the efficiency of the estimate of the parameters of the population for the characteristic under ...Auxiliary information ... See full document

... estimating population parameters like the mean, total or ratio, product and regression, sample surveys experts sometimes use auxiliary information to improve precision of the ...correlated, ... See full document

... an efficient class of ratio-in-exponential-type estimators with two concomitant variables using Ranked Set Sampling (RSS) scheme which improves the available ...and ... See full document

... a class of estimators for the finite population mean that is decidedly better than some other classes gathering information on two auxiliary variables in a two-phase ...suggested ... 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

... In survey sampling an attempts have been made by various researchers to improve the efficiency of the estimators by using the auxiliary ...context ratio, product and ... See full document