Ratio type Estimators
Efficiency of some Modified Ratio Type Estimators using Product of Sample Size and Parameters of Auxiliary Variable for Estimating Population Mean
... the estimators of parameters of interest with increase ...the ratio method of estimation to obtain an improved estimator of population mean when is highly positively correlated with variable under ...
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Exponential Ratio Type Estimators of Population Mean under Non Response
... exponential ratio type estimator of Y which is better than mean per unit estimator of Y even for the low positive correlation be- tween y and x ...ordinary ratio estimator of Y (due to [2]) is better ...
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A class of efficient Ratio type estimators for the Estimation of Population Mean Using the auxilliary information in survey sampling
... tal. Ratio, product and regression methods of estimat ion are good exa mp les in this ...the ratio type estimators by using the auxilliary information of coeffic ient of skewness and ...
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Application of Ratio-type Estimators for Small Area in Repeated Surveys
... The study was confined to Jorium Gram Panchayat of Faizabad district of state of Uttar Pradesh, INDIA. A survey is conducted of the all households/farmers having milk cattle. These households/farmers were further ...
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Ratio-Type Estimators in Stratified Random Sampling using Auxiliary Attribute
... Some ratio-type estimators have been proposed in stratified random sampling using auxiliary ...proposed estimators have been derived up to first order of ...combined ratio estimator and ...
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Improved Ratio-type Estimators of Population Mean In Ranked Set Sampling Using Two Concomitant Variables
... of ratio-in-exponential-type estimators with two concomitant variables using Ranked Set Sampling (RSS) scheme which improves the available ...proposed estimators are obtained up to first ...
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Improved Ratio Estimators for the Population Mean Using Non-Conventional Measures of Dispersion
... of estimators in sample ...regression type ratio estimators for estimating population mean by some non-conventional dispersion measures such as: Gini’s mean difference, Downton’s method and ...
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Some improved modified ratio estimators based on decile mean of an auxiliary variable
... modified ratio type estimators using the auxiliary information on population decile mean, population coefficient of variation and population correlation coefficient for the estimation of population ...
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A Class of Estimators of Population Mean in Case of Post Stratification
... classical ratio and product estimators which were studied in case of post stratification by Ige and Tripathi ...proposed ratio and product type exponential estimators in case of ...of ...
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Estimation of the Population Variance Using a Smoothing Operator Under Simple Random Sampling
... applied ratio estimation to derive efficient ratio-type estimators of the population vari- ance by modifying the structure of existing estimators such as modified estimators of ...
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Optimal Search of Developed Class of Modified Ratio Estimators for Estimation of Population Variance
... modified ratio type estimators of population mean of the study ...of estimators of population variance of the main variable under ...of estimators have been obtained up to the first ...
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A Class of Ratio-Type Estimator Using Two Auxiliary Variables for Estimating The Population Mean With Some Known Population Parameters
... of ratio type estimators with a linear combination using two auxiliary variables with some known population mean of the study ...proposed estimators are derived. We identified sub-members of ...
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Estimation of Finite Population Mean in Stratified Random Sampling Using Auxiliary Attribute(s) under Non-Response
... exponential ratio type estimators for finite population mean utilizing information on the auxiliary attribute(s) under ...proposed estimators are derived up to first order of ...
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Use of Non-Conventional Measures of Dispersion for Improved Estimation of Population Mean
... modified ratio type estimators for population mean of study variable using auxiliary information in the form of non-conventional measures of dispersion Gini’s mean difference, Downton’s method and ...
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Improved Exponential Type Estimators for Finite Population Mean in Stratified Random Sampling
... 9. Singh R., Kumar M., Singh R. D., Chaudhary M.K. Exponential ratio type estimators in stratified random sampling, presented in International Symposium on Optimization and Statistics (I.S.O.S.) at ...
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Modified Ratio and Product Estimators for Estimating Population Mean in Two-Phase Sampling
... the ratio type estimators are used for improved estimation of population ...Product type estimators are used when there is strong negative ...regression type estimators ...
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Comparison of Some Almost Unbiased Ratio Estimators
... of estimators developed especially for the most urged parameter - ...such estimators by exploiting the ancillary information at ...linear estimators, which are analyzed and compared in terms of ...
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Modified Ratio Estimators of Population Mean Based on Ranked Set Sampling
... We consider the data of Cochran (1977) for practical application of the proposed estimators. The data was collected on the total number of inhabitants (in 1000’s) in 49 cities during 1920 and 1930. The example ...
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A Comparative Study on the Performance of New Ridge Estimators
... suggested estimators defined as in (17) and (18) respectively perform better when data is suffering from low, moderate and high degree of ...suggested estimators SV 1 and ...
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Ratio Estimators in Simple Random Sampling Using Information on Auxiliary Attribute
... defined ratio estimator of population mean when the prior information of population proportion of units, possessing the same attribute is available, as follows: ...
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