[PDF] Top 20 1.3 Especificaciones Tecnicas - Pozo Tubular

... proposed estimator has the minimum mean squared error among the other competing estimators of population mean of study ...proposed estimator is better than the Singh at al.(2014) ... See full document

... mixture ratio estimators for estimating popula- tion mean by using information on auxiliary variables and attributes simultaneously in two-phase sampling under full, partial and no information cases ... See full document

... this study we have proposed a modified ratio type estimator for population variance of the study variable y under simple random sampling without re- placement making use ... See full document

... of ratio type estimators with a linear combination using two auxiliary variables with some known population mean of the study ...the mean square error of the ... 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 ... See full document

... the estimator of finite population mean or total under ...a ratio estimator for population ...the ratio type estimator provides better efficiency in ... See full document

... cum ratio - type estimator using two auxiliary variables was proposed for estimating the finite population mean of the variable of ...the mean square error ... See full document

... the predictive estimation of finite population mean using coefficient of kurtosis and median of the auxiliary variable under simple random sampling ...improved ... See full document

... two-parameter ratio-product-ratio type exponential estimator for a finite population mean in simple random sampling without replacement (SRSWOR) following the methodology ... See full document

... the study is to suggest a difference-cum-ratio type of median estimator for finite population median using two- auxiliary variables in double ...sampling. ... See full document

... generalized ratio type estimator of population mean of study variable using known population median of study ...and mean squared ... See full document

... modified ratio estimators discussed above are biased but have minimum mean squared errors compared to the usual ratio ...the known values of the parameters like ̅ and their linear ...the ... See full document

... of population mean of the study variable by utilizing the information on median of the study ...generalized ratio type estimator has been proposed for this ... See full document

... a ratio-cum-product type estimator of finite population mean using known coefficient of kurtosis and median of auxiliary variable has been ...and ... See full document

... a population 𝑈 = (𝑈 1 , 𝑈 2 , … , 𝑈 𝑁 ) of size N from which a sample of size 𝑛 is drawn using simple random sampling without ...the study variable which is sensitive in ...auxiliary ... See full document

... auxiliary variable X. In this manuscript, we have proposed an improved ratio type estimator of population variance of study variable by suitably using the ... See full document

... a finite population of size ...the study variable or concomitant variable. Let Y be the study variable and X and Z are the two concomitant ... See full document

... of ratio of two inventory population means have been discussed in paper, one is man-inventory population and another is money-inventory population as defined by Ackoff and Sasieni ... See full document

... of ratio estimators, using auxiliary information, for estimating the mean of a finite population is well ...of ratio estimator is high depending on whether the auxiliary ... See full document

... Real data sets have been selected from the literature to check the performance of proposed estimator. The comparison of proposed estimator w.r.t usual unbiased estimator y , Singh and Vishwakarma ... See full document