Search Results - "Gökpınar, Esra"

Standardized likelihood ratio test for homogeneity of variance of several normal populations by Gökpınar, Esra

“…In this study, we propose a standardized likelihood ratio test for homogeneity of variances of several normal populations. We obtain the exact mean and…”
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A Wald test on the problem of homogeneity of variances by Alkan, Gizem, Gökpınar, Fikri, Gökpınar, Esra

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Effects of Sinovac-Coronavac and Pfizer-BioNTech mRNA vaccines on choroidal and retinal vascular system by Sarıtaş, Özge, Yorgun, Mücella Arıkan, Gökpınar, Esra

“…•Despite the development of several different types of vaccines against SARSCoV- 2, several concerns have arisen including ocular complications.•Our findings…”
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Standardized likelihood ratio test for homogeneity of variance under normality by Gökpınar,Esra

“…In this article, standardized likelihood ratio test is proposed for the homogeneity of variances under normality. The proposed method was compared with some of…”
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Comparison of tests for the equality of several log-normal means by Gökpınar,Esra

“…In this paper, we focused on testing for the equality of several log-normal means since the lognormal distribution is one of the most common distributions for…”
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A COMPUTATIONAL APPROACH TEST FOR THE EQUALITY OF TWO MULTIVARIATE NORMAL MEAN VECTORS UNDER HETEROGENEITY OF COVARIANCE MATRICES by Gokpinar, Esra, Karanfil, Sezen, Ebegil, Meral, Ozdemir, Yaprak Arzu, Gokpinar, Fikri

“…* In this paper, a computational approach test (CAT) was proposed to test the equality of two multivariate normal mean vectors under heterogeneity of…”
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A Study On Tests Of Hypothesis Based On Ridge Estimator by Gökpınar,Esra, Ebegil,Meral

“…The literature of Ridge regression include many articles that deal with point estimation of the coefficients vector . However, few of them tackle the…”
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Goodness of fit tests for Nakagami distribution based on smooth tests by Özonur, Deniz, Gökpınar, Fikri, Gökpınar, Esra, Bayrak, Hülya

“…Nakagami distribution is one of the most common distributions used to model positive valued and right skewed data. In this study, we interest goodness of fit…”
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Standardized Log-Likelihood Ratio Test for the Equality of Inverse Gaussian Scale Parameters by Gökpınar, Esra

“…We propose standardized log-likelihood ratio test which is not based on any resampling methods and intensive computer method for the equality of inverse…”
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A review on shrinkage parameters in Ridge regression by Gökpınar,Esra, Gökpınar,Fikri, Ebegil,Meral

“…Multicollinearity problem arises in the case of near-linear dependencies among the independent (explanatory) variables. Ridge regression based on different…”
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A modified Mack-Wolfe test for the umbrella alternative problem by Gokpinar, Esra, Gokpinar, Fikri

“…The Mack-Wolfe test is the most frequently used non parametric procedure for the umbrella alternative problem. In this paper, modifications of the Mack-Wolfe…”
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Testing the Significance of Regression Coefficients in Liu Type Estimators by Kaplan Tabak, Hilal, Ebegil, Meral, Gökpınar, Esra

“…In the linear regression model, the multicollinearity problem arises when there is a linear relationship between independent variables. This situation causes…”
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Estimators of the Moments for the Inventory Model of Type (s, S) by Gökpınar, Esra, Khaniyev, Tahir, Gamgam, Hamza, Gökpinar, Fikri

“…The inventory model of type ( s , S ) is one of the most common used inventory models used in many problems of stock control. It is very important to know…”
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Permutation approach for ordinal preference data by Gökpinar, Fikri, Gökpinar, Esra, Bayrak, Hülya

“…Best et al. (Best, D. J., Rayner, J. C. W., O'Sullivan, M. G. ( 2000 ). Product maps for consumer categorical data. Food Quality and Preference, 11:91-97)…”
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A new computational approach test for one-way ANOVA under heteroscedasticity by Mutlu, Hakan Tahiri, Gökpinar, Fikri, Gökpinar, Esra, Gül, Hasan Hüseyin, Güven, Gamze

“…This paper proposes a new test statistic based on the computational approach test (CAT) for one-way analysis of variance (ANOVA) under heteroscedasticity. The…”
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A new estimator for stationary distribution of the inventory model of type (s, S) by Gokpinar, Esra; Gazi University, Faculty of Science, Department of Statistics, Khaniyev, Tahir; TOBB University of Economics and Technology, Department of Industrial Engineering, Gamgam, Hamza; Gazi University, Faculty of Science, Department of Statistics, Gokpinar, Fikri

“…We consider  inventory model of type (s, S) which is used mostly in stock control policy. It is very important to know characteristics of an inventory model of…”
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Comparisons of the Goodness of Fit Tests for the Geometric Distribution by Gökpınar,Esra, Gökpınar,Fikri, Gül,Hasan Hüseyin, Bayrak,Hülya, Özonur,Deniz

“…This article gives some goodness of fit tests for the Geometric distribution. The tests used in this study are Anderson Darling test, Cramer-von Mises test,…”
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Permutation Test Approach for Ordered Alternatives in Randomized Complete Block Design: A Comparative Study by GOKPINAR, Esra; Gazi University, Faculty of Science, Department of Statistics, Ankara, GUL, Hasan Hüseyin; Gazi University, Faculty of Science, Department of Statistics, Ankara, GOKPINAR, Fikri; Gazi University, Faculty of Science, Department of Statistics, Ankara, BAYRAK, Hülya; Gazi University, Faculty of Science, Department of Statistics, Ankara, OZONUR, Deniz; Gazi University, Faculty of Science, Department of Statistics, Ankara

“…Randomized complete block design is one of the most used experimental designs in statistical analysis. For testing ordered alternatives in randomized complete…”
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Testing the equality of several log-normal means based on a computational approach by Gokpinar, Fikri, Gokpinar, Esra

“…In this study, we propose a new test based on a computational approach to test the equality of several log-normal means. We compare this test with some…”
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Testing equality of variances for several normal populations by Gokpinar, Esra, Gokpinar, Fikri

“…In this study, we develop a test based on computational approach for the equality of variances of several normal populations. The proposed method is…”
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