[PDF] Top 20 Estimation of Population Variance in Two-Phase Sampling in Presence of Random Non-Response

Estimation of Population Variance in Two-Phase Sampling in Presence of Random Non-Response

... called non- response and is sometimes so large that can completely vitiate the ...at random (MAR), observed at random (OAR), and parameter distribution ...of population variance ... See full document

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ESTIMATION OF FINITE POPULATION MEAN USING RANDOM NON–RESPONSE IN SURVEY SAMPLING

... at random (MAR), observed at random (OAR) and parameter distribution ...at random (MAR) and missing completely at random (MCAR) in a very nice way, see Singh et al ...of random ... See full document

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Optimal Allocation in Domains Mean Estimation Using Double Sampling with Non-Linear Cost Function in the Presence of Non-Response

... into two disjoint and exhaustive groups of respondents and non- ...from non-responding group is then selected and a second more extensive attempt is made to the group so as to obtain the required ... See full document

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A System of Estimators of the Population Mean under Two-Phase Sampling in Presence of Two Auxiliary Variables

... the population mean has been suggested, and to compare its performance an empirical study has been carried ...of estimation, estimation of the population ratio of two study variables, ... See full document

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A FUZZY APPROACH FOR SOLVING DOUBLE SAMPLING DESIGN IN PRESENCE OF NON-RESPONSE

... Non response refers to the sources of failure in obtaining the observations or information on the pre-assigned units of the sample, instance give some other ...of non-response the sampler has ... See full document

10

Estimation of Finite Population Mean in Stratified Random Sampling Using Auxiliary Attribute(s) under Non-Response

... in variance of the ...the population mean like Cochran (1977), Rao (1986), Khare and Srivastava (1993, 1997), Okafor and Lee (2000) and Singh and Kumar ... See full document

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Compromise Allocation for Combined Ratio Estimates of Population Means of a Multivariate Stratified Population Using Double Sampling in Presence of Non Response

... the population means of a multivariate stratified population using double sampling in presence of ...second phase of double sampling are obtained by formulating the problems as ... See full document

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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 variable in the ... See full document

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Domain Mean Estimation Using Double Sampling with Non-Linear Cost Function in the Presence of Non Response

... of non-response is inherent in many ...the non-respondents. The non-response error is not so important if the characteristics of the non-responding units are similar to those of ... See full document

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A Generalized Difference-cum-Ratio Type Estimator for the Population Variance in Double Sampling

... survey sampling, the estimation of population variance of the variable under study has attracted the attention of large number of statisticians to know the variation in the ...of ... See full document

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Improvement on the non-response in the population ratio of mean for current occasion in sampling on two occasions

... unbiased estimation of mean of characteristics in successive ...the population ratio and product of two characters for the most recent occasion may be of considerable ...of estimation of the ... See full document

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Some Multi Convex Programming Problems Arising in Multivariate Sampling

... ABSTRACT The problems of multivariate sampling arising in the areas of stratified random sampling, two stage sampling, double sampling and response errors formulate as multiobjective con[r] ... See full document

6

Kinetics of Petroleum Sulfides Peroxidation in the Presence of Two Catalysts

... kinetics and products of petroleum sulfides peroxidation to sulfoxides depends on the reactivity and mechanism of molybdic compounds catalytic effect. The present work is the continuation of this research and is devoted ... See full document

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Multivariate Ratio Estimator of the Population Total under Stratified Random Sampling

... compared to that of the true population (simulated) total. The True population total is 28,235,645. Table 1 sum- marizes the statistics corresponding to each estimator. Figures 1 and 2 show the plotted ... See full document

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A Family of Estimators for Estimating Population Variance Using Auxiliary Information in Sample Survey

... survey sampling an attempts have been made by various researchers to improve the efficiency of the estimators by using the auxiliary ...estimating population mean Y ...finite population mean has been ... See full document

8

The estimation of yield in cereal crops by sampling methods

... In Method (a), since each plot was divided into three parts, 10 samples being taken from each part, the total variance may be analysed into a portion representing differences between the[r] ... See full document

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Model-Assisted Estimation of Population Mean in Two-Stage Cluster Sampling

... the population elements. The non-sampled units are not known and we therefore use the auxiliary information together with the sampled units of the survey variable to estimate the non-sampled part of ... See full document

13

Linear Minimum Variance Unbiased Estimation of Individual and Population slopes in the presence of Informative Right Censoring

... Comparison with respect to the MSE under simulation study reveals the better performance of LMVUB estimator as an alternative to that of the Unweighted, Weighted and Empirical Bayes estimators in both the informative ... See full document

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The effect of clustering on the precision of estimation : a thesis presented in partial fulfilment of the requirements for the degree of Master of Business Studies in Marketing at Massey University

... That is, the measurement of sample design efficiency is sampling variance of the actual sample design over the expected value of sampling variance of a simple random sample with the same[r] ... See full document

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A Study of the Methods of Estimation of Carbohydrates, especially in Plant-extracts: A New Method for the Estimation of Maltose in presence of other Sugars.

... Davis, W. A. and Daish, A. J. 1913. A Study of the Methods of Estimation of Carbohydrates, especially in Plant-extracts: A New Method for the Estimation of Maltose in presence of other Sugars. The ... See full document

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