Results 11 to 20 of about 6,177,620 (296)

Asymptotic relative Pitman efficiency in group models [PDF]

Journal of Multivariate Analysis, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chang, Ted, Tsai, Ming-Tien
openaire   +3 more sources

Asymptotic Relative Efficiency Comparison for some Fit Indices in Structural Equation Modeling

Cumhuriyet Science Journal
There are many fit statistics used in the structural equation modeling, and new ones are consistently being developed. Because of the variety of fit statistics, it is very important to be able to decide which fit statistics are appropriate to use in ...
İsmet Doğan, İlkay Doğan, Nurhan Dogan   +2 more
doaj   +2 more sources

Robust Estimation Methods in Random Intercept Model: A Comparative Study [PDF]

The Egyptian Statistical Journal, 2018
Random Intercept regression models  are used in modeling grouped data where the observations  are  correlated in each group. This paper present a comperative sinulation study between parametric and two robust estimation methods to assess the influence of
Eman M. Hanafy, Hend A. Auda, Yahia S. El-Horbaty   +2 more
doaj   +1 more source

Matched Pairs with Binary Outcomes

Revstat Statistical Journal, 2020
Comparison of two treatments in matched pairs is a powerful general method for improving precision. When the outcome is binary the formulation in terms of logistic comparisons leads to an analysis in which concordant pairs, that is pairs in which both ...
Christiana Kartsonaki , D.R. Cox
doaj   +1 more source

A Testing for New Renewal Better than Used Class of Survival Functions [PDF]

The Egyptian Statistical Journal, 2000
A U-statistic is derived for testing exponentiality against new renewal better (worse) than used. For this class of life distributions, a nonparametric procedure (U-statistic) is presented in this investigation. Selected critical values are tabulated for
M. Hendi
doaj   +1 more source

Improved estimators for the rate parameter of gamma model using asymptotic properties

Heliyon, 2021
In this paper we proposed three estimators namely linear shrinkage, preliminary test and shrinkage preliminary test for the rate parameter of univariate gamma.
Nana Kena Frempong, Richard Kodzo Avuglah, Isaac Kwame Dontwi, Francis Kwame Bukari   +3 more
doaj   +1 more source

On Optimal and Asymptotic Properties of a Fuzzy L₂ Estimator

Mathematics, 2020
A fuzzy least squares estimator in the multiple with fuzzy-input–fuzzy-output linear regression model is considered. The paper provides a formula for the L2 estimator of the fuzzy regression model. This paper proposes several operations for fuzzy numbers
Jin Hee Yoon, Przemyslaw Grzegorzewski
doaj   +1 more source

Goodness of Fit Approach for Testing Exponential Better than Used in Convex for Life Distributions [PDF]

The Egyptian Statistical Journal, 2004
Test statistic is derived for testing exponentiality against exponential better (worse) than used in convex EBUC (EWUC). Selected critical values are tabulated for sample size n=5(1)25(5) 50.
M. Hendi, N. AL-Ghufily
doaj   +1 more source

Two symmetric and computationally efficient Gini correlations

Dependence Modeling, 2020
Standard Gini correlation plays an important role in measuring the dependence between random variables with heavy-tailed distributions. It is based on the covariance between one variable and the rank of the other. Hence for each pair of random variables,
Vanderford Courtney, Sang Yongli, Dang Xin   +2 more
doaj   +1 more source

The Efficiency of a Nonlinear Discriminant Function based on Unclassified Initial Samples from a Mixture of Two Weibull Population Mean Distribution Populations [PDF]

Assiut University Journal of Multidisciplinary Scientific Research
This research investigates the asymptotic behavior of a discrimination procedure based on a mixture of two populations governed by the Weibull Population Mean Distribution (WPMD).
Omar Ahmed, shereen Mohamed, Ayman Abd-Elrahman   +2 more
doaj   +1 more source