Results 11 to 20 of about 369,033 (293)
Enhanced exponential ratio-cum-ratio estimator in ranked set sampling using transformed auxiliary information. [PDF]
HeliyonKhan L, Ahmad S, Alomair AM, Alomair MA.
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A new estimator for population total in the presence of missing data under unequal probability sampling without replacement: A case study on fine particulate matter in Northern Thailand [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2023 The issue of fine particulate matter in Thailand, especially in Northern Thailand, is an urgent problem that needs to be solved because of potential harm to human health. Prior estimates of fine particulate matter help planning how to reduce it.
Chugiat Ponkaew, Nuanpan Lawson
doaj
An Efficient General Family of Estimators for Population Mean in the Presence of Non-Response
Journal of Mathematical and Fundamental Sciences, 2017 This paper presents a new general family of estimators to estimate the population mean of study variable y in the presence of non-response when utilizing a known coefficient of variation of study variable y.
Thanapanang Rachokarn, Nuanpan Lawson
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Estimation of a Distribution function under Sampling on Two Occasions
Nonlinear Analysis, 2009 Estimation of the distribution function under sampling on two occasions with a simple random sampling design on each occasion is investigated. Composite regression and ratio type estimators are considered, using values of the study variable as auxiliary ...
V. Chadyšas
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On Some Predictive Ratio Type Estimators in Two Stage Sampling [PDF]
Journal of Statistical Theory and Applications (JSTA), 2013 Some predictive ratio type estimators in two stage sampling are derived following the model free predictive criterion proposed by Basu (1971) and these estimators are compared with the classical multistage ratio estimator and also with Smith’s (1969 ...
A.K.P.C. Swain +2 more
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An unbiased estimator for the ellipticity from image moments [PDF]
, 2017 An unbiased estimator for the ellipticity of an object in a noisy image is given in terms of the image moments. Three assumptions are made: i) the pixel noise is normally distributed, although with arbitrary covariance matrix, ii) the image moments are ...
Tessore, Nicolas
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The generalization of ratio-cum product estimator for the arbitrary sample design
Lietuvos Matematikos Rinkinys, 2009 The generalization of a dual to ratio-cum-product estimator of the finite population total for the arbitrary sample design is given. The approximate variance is calculated and variance estimator is constructed.
Ignas Bartkus, Aleksandras Plikusas
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International Journal of Bio-Resource and Stress Management, 2023 Auxiliary variable is commonly used in survey sampling to improve the precision of estimates. Whenever there is auxiliary information available, the researchers want to utilize it in the method of estimation to obtain the most efficient estimator ...
Nitu Mehta (Ranka), Latika Sharma
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Channel Estimation and Uplink Achievable Rates in One-Bit Massive MIMO Systems [PDF]
, 2016 This paper considers channel estimation and achievable rates for the uplink of a massive multiple-input multiple-output (MIMO) system where the base station is equipped with one-bit analog-to-digital converters (ADCs).
Li, Yongzhi +4 more
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WSEAS TRANSACTIONS ON MATHEMATICS, 2020 Confidence intervals for ratio of means for large paired and unpaired samples with finite variance,obtained by applying the central limit theorem and Cramér-Wold device, are given. Also, these intervals for ratiosare obtained under infinite variance and when considering independent populations, by using stable distributions.Numerical illustrations by ...
Omey, Edward, Cadena, Meitner
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