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Estimation of Variance of the Ratio Estimator.
Biometrika, 1982SUMMARY A general class of estimators of the variance of the ratio estimator is considered, which includes two standard estimators vo and v2 and approximates another estimator VH suggested by Royall & Eberhardt (1975). Asymptotic expansions for the variances and biases of the proposed estimators are obtained.
Changbao Wu
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A ratio estimator in path sampling
Communications in statistics. Simulation and computation, 2019In this paper, a ratio estimator is proposed for path sampling, which is a cost-effective sampling design for spatial population where population paths are created and sampled. The efficiencies of the ratio estimator and the former unbiased estimator for
M. Patummasut, Sudarat Nidsunkid
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Financial Management, 1986
A company's financial performance often depends on the uncertain price of a commodity or financial instrument. For example, a lumber distributor might enter into a fixed-price contract for a particular variety of lumber; or a cable manufacturer might have a short position in copper; or a firm might have debt whose interest rate is linked to the prime ...
David E. Bell, William S. Krasker
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A company's financial performance often depends on the uncertain price of a commodity or financial instrument. For example, a lumber distributor might enter into a fixed-price contract for a particular variety of lumber; or a cable manufacturer might have a short position in copper; or a firm might have debt whose interest rate is linked to the prime ...
David E. Bell, William S. Krasker
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Estimation of cumulative odds ratios
Annals of Epidemiology, 2004Standard estimation of ordered odds ratios requires the constraint that the etiologic effects of exposure are homogenous across thresholds of the ordered response. We present a method to relax this often-unrealistic constraint.The kernel of the proposed method is the expansion of observed data into "person-thresholds." Using standard statistical ...
Stephen R, Cole +2 more
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Estimating odds-ratio: Homogeneity constraints
Journal of the Italian Statistical Society, 1997Summary: This paper considers the asymptotic theory of estimating odds ratios in \(k\) tables when there is uncertain prior information about homogeneity constraint on them. Using a preliminary test approach, we propose seven estimators and study their properties of asymptotic dominance under local alternatives.
Gupta, A. K., Ehsanes Saleh, A. K. Md.
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Journal of Statistical Computation and Simulation, 2018
In this article, we propose a new improved ratio-product type exponential estimator to estimate the finite population variance . Expressions for bias and mean squared error of proposed estimator are derived up to the first order of approximation.
Siraj Muneer +3 more
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In this article, we propose a new improved ratio-product type exponential estimator to estimate the finite population variance . Expressions for bias and mean squared error of proposed estimator are derived up to the first order of approximation.
Siraj Muneer +3 more
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Scandinavian Journal of Psychology, 1967
Analysis of the individual matrices of ratio estimates, obtained in four experiments, show (1) that the subjective range of scales depends on the individual ‘level of estimation’, and (2) that the relation between scales representing low and intermediate level of estimation is a power function and the relation between the scales from high and ...
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Analysis of the individual matrices of ratio estimates, obtained in four experiments, show (1) that the subjective range of scales depends on the individual ‘level of estimation’, and (2) that the relation between scales representing low and intermediate level of estimation is a power function and the relation between the scales from high and ...
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Nature, 1954
RATIO estimators are frequently employed in sample surveys when estimating the population mean Ȳ of a variate y with the help of the known population mean X of a correlated variable x. Confining ourselves to the case of a simple random sample of n pairs y i, X i from a population of N pairs, various ratio estimators of Ȳ can be formed of which the most
H. O. HARTLEY, A. Ross
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RATIO estimators are frequently employed in sample surveys when estimating the population mean Ȳ of a variate y with the help of the known population mean X of a correlated variable x. Confining ourselves to the case of a simple random sample of n pairs y i, X i from a population of N pairs, various ratio estimators of Ȳ can be formed of which the most
H. O. HARTLEY, A. Ross
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Inverse Gaussian Ratio Estimation
Applied Statistics, 1986A ratio estimation model based on the inverse Gaussian distribution is presented, together with a complete and exact system of inference procedures. The system is an analogue of that for the normal model, involving inferences based on \(\chi^ 2\) and F distributions. A case illustration and a discussion of some practical issues are included.
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Ratio-Estimations of Loudness-Intervals
The American Journal of Psychology, 1967Two loudness-scales have been published: (a) the sone scale,1 and (b) the lambda scale.2 These two scales, based on different scaling procedures, are quite divers. The sone scale, based on direct estimates of the apparent ratios of loudnesses, is a power function of sound-intensity with an exponent of 0.3.
J, Beck, W A, Shaw
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