[PDF] Top 20 Exponential chain dual to ratio and regression type estimators of population mean in two-phase sampling

... a two-phase sampling design where in the first-phase a large (preliminary) sample s ′ (s ′ ⊂ U )of size n ′ is drawn following simple random sampling without replacement (SRSWOR) scheme ... See full document

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

... The chain regression type estimator was first introduced by Swain ...some chain ratio and regression type estimators based on two auxiliary variables in ... See full document

... on two variables in two-phase sampling has been widely used at estimation stage in order to inflate the precision of the ...ordinary ratio and regression estimators of 𝑌, ... See full document

... double sampling was first proposed by Neyman [1] in sampling human populations when the mean of auxiliary variable was ...multivariate regression estimator for multi-phase ... See full document

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

... 13. Singh, R., Kumar, M., Singh, R.D., and Chaudhary, M.K. (2008): Exponential Ratio Type Estimators in Stratified Random Sampling. (Proceedings of International Symposium on ... See full document

... The estimators cited above have been extensively used for estimation of population mean in varied ...improved ratio type exponential estimator and analyzes its ...of two ... See full document

... propose two combined exponential ratio type estimators for finite population mean utilizing information on the auxiliary attribute(s) under ...proposed estimators ... See full document

... Double sampling is cost effective sampling design, and precision of ratio and regression estimates of study ...Double sampling increases if there is a high degree of correlation between ... 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 ... See full document

... Remark 5.1: It is important to mention that the optimum choice of  = ( 1 − 2  )( 1 − 2  ) depends upon the value of C =  yx C y C x .Reddy (1978) has shown that the value of ‘C’ is more stable than other ... See full document

... of estimators using information on auxiliary ...of population proportion possessing an attribute (highly correlated with study va- riable ...proposed ratio and product type exponential ... See full document

... the estimators y rd , y rd ( ) C , y red and the proposed class of estimators t ˆ red over the usual sample mean estimator y , we have computed the percent relative efficiencies (PREs) of the ... See full document

... In sampling theory the role of auxiliary information has a great ...as population total, mean, skewness, correlation, attribute ...their ratio, product and exponential type ... 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

... ([AA17]) two-phase factor-type estimators with two auxiliary variables for estimating finite population mean were examined using ...These estimators were obtained ... See full document

... factor type ratio estimators of population mean in single occasion sample survey and presented its nice ...of estimators was, it produces the precise estimate and at the same ... See full document

... of ratio estimators in two stage sampling are considered and their efficiencies are compared with an estimator without use auxiliary ... See full document