[PDF] Top 20 Historia de La Salud Ocupacional en Colombia
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An Improved Estimator of Population Mean using Information on Median of the Study Variable
... The population 1 and 2 have been taken from Singh and Chaudhary (1986, page ...the population 3 has been taken from Mukhopadhyay (2005, page ...the study variable is the estimate the area of ... See full document
37
Improved Ratio Estimators for the Population Mean Using Non-Conventional Measures of Dispersion
... ratio estimator given in (1) is used for improving the precision of the estimate of the population mean as compared to usual sample mean estimator whenever a positive correlation exists ... See full document
18
An Efficient Ratio Type Predictive Estimator of Finite Population Mean using Known Median of the Study Variable
... that population mean of the study variable is unknown, however, the population median of the study variable may be ...desired information in terms of ... See full document
41
An Improved Estimator Of Finite Population Mean Using Auxiliary Attribute(S) In Stratified Random Sampling Under Non-Response
... the population mean in the presence of an auxiliary variable has been widely discussed in finite population sampling ...the population mean using one auxiliary ... See full document
6
Vol 8, No 6 (2017)
... Auxiliary information is useful for improved estimation of population parameters but it is collected on additional cost of the ...even population mean of the study ... See full document
26
Vol 9, No 5 (2018)
... the population values and is used to predict the non-sampled ...finite population. Well known estimators of population parameters encountered in the classical theory, as expansion, ratio, regression, ... See full document
191
An exponential and log ratio estimator of population mean using auxiliary information in double sampling
... of population mean in varied ...the study is to proposed an improved ratio type exponential estimator and analyzes its ...auxiliary information of two variables and proposed a ... See full document
18
A Two-Parameter Ratio-Product-Ratio Type Exponential Estimator for Finite Population Mean in Sample Surveys
... an estimator of the population mean Y of the study variable y is possible by using information on an auxiliary variable x (highly correlated with the study ... See full document
10
Use of Non-Conventional Measures of Dispersion for Improved Estimation of Population Mean
... the population is large, it is very time taking and costly to get the information on each of the population ...the population by its corresponding ...the population mean, the ... See full document
6
Some Exponential Produt Type Estimators Using Auxiliary Attributes.
... auxiliary information to develop efficient estimators is a long ...ratio estimator, when the study variable y and auxiliary variable x are positively ...ratio estimator does not ... See full document
6
Some Exponential Produt Type Estimators Using Auxiliary Attributes
... auxiliary information to develop efficient estimators is a long ...ratio estimator, when the study variable y and auxiliary variable x are positively ...ratio estimator does not ... See full document
5
Improved Ratio-Cum-Product Estimators of Population Mean Using Known Population Parameters of Auxiliary Variables
... auxiliary information has been in practice to increase the efficiency of the ...When population parameters of the auxiliary variable are known, several estimators for population mean of ... See full document
26
A Modified Regression Estimator for Double Sampling
... auxiliary variable and study variable Hidiroglou and Sarndal ...the mean of study variable “y” is increased by proper attachment of highly correlated auxiliary ...auxiliary ... See full document
15
Estimation of Population Variance Using the Coefficient of Kurtosis and Median of an Auxiliary Variable under Simple Random Sampling
... 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 of coefficient ... See full document
18
Efficient Estimator for Population Variance Using Auxiliary Variable
... Abstract Population variance is one of the important measures of ...of population variance using auxiliary information under simple random sampling ...an improved estimator ... See full document
8
Exponential Ratio Type Estimators of Population Mean under Non Response
... when information about all the sampling units is available then it is conventional to esti- mate unknown population mean of study variable using ratio estimator provided ... See full document
52
Mixture Ratio Estimators Using Multi Auxiliary Variables and Attributes for Two Phase Sampling
... estimators using information on auxiliary ...known information of population proportion possessing an attribute (highly correlated with study variable ...the information ... See full document
12
Improved generalized family of estimators of population mean using information on transformed auxiliary variables
... the population mean Y of the study variable y using information on transformed auxiliary ...al(2015) estimator shown to be the members of the suggested classes of ...and ... See full document
9
Improved Modified Ratio Estimator for Estimating Population Mean in Double Sampling Using Information on Auxiliary Attribute
... the variable of interest is expensive to measure or unaffordable, but a related variable is much cheaper, we might first sample many of the sampling units and measure the cheaper (auxiliary) variable ... See full document
7
A NEW MODIFIED RATIO ESTIMATOR FOR ESTIMATION OF POPULATION MEAN WHEN MEDIAN OF THE AUXILIARY VARIABLE IS KNOWN
... minimum mean squared errors compared to the usual ratio ...the population median of the auxiliary variable to improve the ratio ...of median is unaffected and robustness by the extreme ... See full document
7
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