Hülya Bayrak profile image
Hülya Bayrak Prof. Dr. Gazı University
Publication 25 Review 9 CrossRef Cited 11
25 Publication
9 Review
11 CrossRef Cited

Research Fields

Statistical Experiment Design Applied Statistics

Institution

Gazı University

Publications

2k Faktöriyel Tasarımlarda Sağa Çarpık Dağılımlar İçin Senkronize Permütasyon Testi
Authors: Hülya Bayrak , Selda Zengin
Published: 2025 , Gazi Üniversitesi Fen Fakültesi Dergisi
DOI: 10.63716/guffd.1567015
FAVORITE 0 TOTAL DOWNLOAD COUNT 494

0

494

Investigation of Bell Regression Model as an Alternative to Poisson and Negative Binomial Regression Models: Determining the Factors Affecting Length of Staying Hospital with The Case of Turkey
Authors: Duygu Kılıç , Hatice Tül Kübra Akdur , Hülya Bayrak
Published: 2023 , Journal of the Institute of Science and Technology
DOI: 10.21597/jist.1219739
FAVORITE 0 TOTAL DOWNLOAD COUNT 860

0

860

DUS Inverse Weibull Distribution and Parameter Estimation in Regression Model
Authors: Hasan Hüseyin Gül , Şükrü Acıtaş , Hülya Bayrak , Birdal Şenoğlu
Published: 2023 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufenbed.1107862
FAVORITE 0 TOTAL DOWNLOAD COUNT 731

0

731

Proposed Tests for The General Alternative in A Mixed Design Consist of Completely Randomized and Randomized Block Design
Authors: Hasan Hüseyin Gül , Hülya Bayrak
Published: 2022 , Afyon Kocatepe University Journal of Science and Engineering
DOI: 10.35414/akufemubid.1107460
FAVORITE 0 TOTAL DOWNLOAD COUNT 859

0

859

Proposed nonparametric tests for the ordered alternative in a completely randomized and randomized block mixed design
Authors: Hasan Hüseyin Gül , Hülya Bayrak
Published: 2021 , Cumhuriyet Science Journal
DOI: 10.17776/csj.762235
FAVORITE 0 TOTAL DOWNLOAD COUNT 1469

0

1469

Comparative Study on Synchronized Permutation Tests in Balanced IXJ Designs in Case of Non-Normally Distributed Error Terms
Authors: Dilşad Yıldız Kaçar , Fikri Gökpınar , Hülya Bayrak
Published: 2020 , Sinop University Journal of Natural Sciences
DOI: 10.33484/sinopfbd.641094
FAVORITE 0 TOTAL DOWNLOAD COUNT 772

0

772

A Comparasion on Count Data Models: Example of Problems That Occured in E-Commerce Over the Turkey
Authors: Duygu Kılıç , Hülya Bayrak
Published: 2020 , Selcuk University Journal of Science Faculty
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2958

0

2958

An adaptation of pseudo-score confidence interval method for linear mixed models
Authors: Hatice Tul Kubra Akdur , Deniz Ozonur , Hulya Bayrak
Published: 2020 , Hacettepe Journal of Mathematics and Statistics
DOI: 10.15672/hujms.510261
FAVORITE 0 TOTAL DOWNLOAD COUNT 1327

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1327

Optimization Of Multi Responses Using Data Envelopment Analysis: The Application in Food Industry
Authors: Duygu Kılıc , Meral Ebegıl , Hulya Bayrak , Berrin Ozkaya, Başak Apaydın Avsar
Published: 2019 , Gazi University Journal of Science
DOI: 10.35378/gujs.394984
FAVORITE 0 TOTAL DOWNLOAD COUNT 1989

0

1989

Multi Response Optimization in Food Industry Using Principal Component Analysis and Response Surface Methodology
Authors: Deniz Ozonur , Duygu Kılıç , Hatice Tul Kubra Akdur , Hülya Bayrak
Published: 2019 , Erzincan University Journal of Science and Technology
DOI: 10.18185/erzifbed.485762
FAVORITE 0 TOTAL DOWNLOAD COUNT 3036

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3036

Comparison of Rank-Based Tests for Ordered Alternative Hypotheses in Randomized Complete Block Designs
Authors: Hatice Tul Kubra Akdur , Deniz Ozonur , Hasan Huseyin Gul , Hulya Bayrak
Published: 2019 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1292

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1292

Some Factors in the Effective Amount of Corn Bread Phytic Acid with Response Surface Method Approach
Authors: Duygu Kılıç , Hülya Bayrak , Berrin Özkaya
Published: 2018 , Selcuk University Journal of Science Faculty
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2059

0

2059

Optimal Asymptotic Tests for Nakagami Distribution
Authors: Deniz Ozonur , Hatice Tül Kübra Akdur, Hülya Bayrak
Published: 2018 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1169

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1169

Çapraz Tasarımlarda Etkilerin Testi için Parametrik ve Parametrik Olmayan Testlerin Karşılaştırılması
Authors: Esra Gökpınar , Hilal Sarı, Hülya Bayrak
Published: 2018 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2482

0

2482

A Modified Jonckheere Test Statistic for Ordered Alternatives in Repeated Measures Design
Authors: Hatice Tül Kübra Akdur , Fikri Gökpınar , Hülya Bayrak , Esra Gökpınar
Published: 2016 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufbed.73024
FAVORITE 0 TOTAL DOWNLOAD COUNT 1506

0

1506

A Comparison of Confidence Interval Methods of Fixed Effect in Nested Error Regression Model
Authors: Hatice Tül Kübra Akdur , Deniz Özonur , Hülya Bayrak
Published: 2016 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 2045

0

2045

Assessing the Robustness of Two Treatments Three Periods Dual Balanced Crossover Designs to Subject Dropout
Authors: Leyla Yılmaz , Hülya Bayrak , Fikri Gökpınar
Published: 2016 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufbed.31190
FAVORITE 0 TOTAL DOWNLOAD COUNT 1250

0

1250

Using of fractional factorial design (r k−p ) in data envelopment analysis to selection of outputs and inputs
Authors: Hulya Bayrak , Oday Jarjies , Kubra Durukan
Published: 2015 , Hacettepe Journal of Mathematics and Statistics
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 565

0

565

Permutation Test Approach for Ordered Alternatives in Randomized Complete Block Design: A Comparative Study
Authors: Esra Gokpınar , Hasan Gul , Fikri Gokpınar , Hülya Bayrak , Deniz Ozonur
Published: 2014 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 1841

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1841

Comparisons of the Goodness of Fit Tests for the Geometric Distribution
Authors: Deniz Özonur , Esra Gökpınar , Fikri Gökpınar , Hülya Bayrak , Hasan Gül
Published: 2013 , Gazi University Journal of Science
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 3975

0

3975

Conditional Gaussian Distribution and Interactions
Authors: Hülya Bayrak , Fikri Gökpınar
Published: 2003 , İstatistik Araştırma Dergisi
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 414

0

414

The Dual Structure of Incomplete Block Designs
Authors: Hülya Bayrak
Published: 2003 , İstatistik Araştırma Dergisi
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 403

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403

Graphical Models for Continuous Variables
Authors: Hülya Bayrak , Fikri Gökpınar, Berrin Özkaya
Published: 2003 , İstatistik Araştırma Dergisi
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 417

0

417

The Orthogonal Arrays
Authors: Hülya Bayrak , Aslıhan Alhan
Published: 2002 , İstatistik Araştırma Dergisi
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 619

0

619

GEOMETRICAL STRUCTURE OF DUAL DESIGNS
Authors: Hülya Bayrak , Soner Gönen
Published: 2001 , Hacettepe Journal of Mathematics and Statistics
DOI: -
FAVORITE 0 TOTAL DOWNLOAD COUNT 910

0

910

Articles published in
Afyon Kocatepe University Journal of Science and Engineering
Afyon Kocatepe University Journal of Science and Engineering
Cumhuriyet Science Journal
Cumhuriyet Science Journal
Erzincan University Journal of Science and Technology
Erzincan University Journal of Science and Technology
Gazi University Journal of Science
Gazi University Journal of Science
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
İstatistik Araştırma Dergisi
İstatistik Araştırma Dergisi
Journal of the Institute of Science and Technology
Journal of the Institute of Science and Technology
Selcuk University Journal of Science Faculty
Selcuk University Journal of Science Faculty
Sinop University Journal of Natural Sciences
Sinop University Journal of Natural Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences

Reviews

Afyon Kocatepe University Journal of Science and Engineering
Afyon Kocatepe University Journal of Science and Engineering
Gazi University Journal of Science
Gazi University Journal of Science
Gazi University Journal of Science Part A: Engineering and Innovation
Gazi University Journal of Science Part A: Engineering and Innovation
Gazi Üniversitesi Fen Fakültesi Dergisi
Gazi Üniversitesi Fen Fakültesi Dergisi
Journal of Polytechnic
Journal of Polytechnic
Journal of Selçuk University Social Sciences Vocational School
Journal of Selçuk University Social Sciences Vocational School
Kafkas Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Kafkas Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Süleyman Demirel University Journal of Natural and Applied Sciences
Süleyman Demirel University Journal of Natural and Applied Sciences

Publications

DUS Inverse Weibull Distribution and Parameter Estimation in Regression Model
Authors: Hasan Hüseyin Gül , Şükrü Acıtaş , Hülya Bayrak , Birdal Şenoğlu
Published: 2023 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufenbed.1107862
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 731

2

0

731

Proposed Tests for The General Alternative in A Mixed Design Consist of Completely Randomized and Randomized Block Design
Authors: Hasan Hüseyin Gül , Hülya Bayrak
Published: 2022 , Afyon Kocatepe University Journal of Science and Engineering
DOI: 10.35414/akufemubid.1107460
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 859

1

0

859

Proposed nonparametric tests for the ordered alternative in a completely randomized and randomized block mixed design
Authors: Hasan Hüseyin Gül , Hülya Bayrak
Published: 2021 , Cumhuriyet Science Journal
DOI: 10.17776/csj.762235
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1469

1

0

1469

Comparative Study on Synchronized Permutation Tests in Balanced IXJ Designs in Case of Non-Normally Distributed Error Terms
Authors: Dilşad Yıldız Kaçar , Fikri Gökpınar , Hülya Bayrak
Published: 2020 , Sinop University Journal of Natural Sciences
DOI: 10.33484/sinopfbd.641094
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 772

1

0

772

Optimization Of Multi Responses Using Data Envelopment Analysis: The Application in Food Industry
Authors: Duygu Kılıc , Meral Ebegıl , Hulya Bayrak , Berrin Ozkaya, Başak Apaydın Avsar
Published: 2019 , Gazi University Journal of Science
DOI: 10.35378/gujs.394984
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 1989

2

0

1989

Multi Response Optimization in Food Industry Using Principal Component Analysis and Response Surface Methodology
Authors: Deniz Ozonur , Duygu Kılıç , Hatice Tul Kubra Akdur , Hülya Bayrak
Published: 2019 , Erzincan University Journal of Science and Technology
DOI: 10.18185/erzifbed.485762
CITED 2 FAVORITE 0 TOTAL DOWNLOAD COUNT 3036

2

0

3036

A Modified Jonckheere Test Statistic for Ordered Alternatives in Repeated Measures Design
Authors: Hatice Tül Kübra Akdur , Fikri Gökpınar , Hülya Bayrak , Esra Gökpınar
Published: 2016 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: 10.19113/sdufbed.73024
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 1506

1

0

1506

A Comparison of Confidence Interval Methods of Fixed Effect in Nested Error Regression Model
Authors: Hatice Tül Kübra Akdur , Deniz Özonur , Hülya Bayrak
Published: 2016 , Süleyman Demirel University Journal of Natural and Applied Sciences
DOI: -
CITED 1 FAVORITE 0 TOTAL DOWNLOAD COUNT 2045

1

0

2045

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