Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Nursel Koyuncu"'
Publikováno v:
Statistica, Vol 80, Iss 1, Pp 103-123 (2020)
The method of maximum likelihood estimation based on ranked set sampling (RSS) and some of its modifications is used to estimate the unknown parameters of the new Weibull-Pareto distribution. The estimators are compared with the conventional estimato
Externí odkaz:
https://doaj.org/article/65ef293e6f814f25a7e7ff02d6e8f25c
Publikováno v:
IEEE Access, Vol 8, Pp 201393-201403 (2020)
In this paper, we develop new acceptance sampling plans based on truncated life tests for the Akash distribution. With various values of the Akash distribution parameter, the minimum sample sizes required to assert the specified mean life are obtaine
Externí odkaz:
https://doaj.org/article/a12029b287ea41718d627480c862af69
Publikováno v:
Journal of Statistical Theory and Applications (JSTA), Vol 18, Iss 1 (2019)
This article proposes some estimators based on an adaptation of the estimators developed by Bahl and Tuteja [1], Diana [2], Koyuncu and Kadilar [3], Koyuncu and Kadilar [4], Shabbir and Gupta [5], and Koyuncu [6] utilizing available supplementry attr
Externí odkaz:
https://doaj.org/article/c671c9b0542649e2b70dd4de08e4bada
Publikováno v:
STATISTICS, COMPUTING AND INTERDISCIPLINARY RESEARCH. 3:143-154
This article develops an almost unbiased estimation of coefficient of dispersion by the productive use of coefficient of dispersion of the auxiliary variable in two phase sampling. Expressions for variances of the proposed estimators are obtained up
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca52b3b344d11933ecd5e1fe4ae4288b
https://doi.org/10.52700/scir.v3i2.55
https://doi.org/10.52700/scir.v3i2.55
Publikováno v:
Mathematical Population Studies. 29:31-46
The presence of extreme values in a data set reduces the efficiency of variance estimators. L-moments are based on the ordered form of a random variable to estimate the variance of the population. ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6349e74e0961736c8abc2a22de973bde
https://doi.org/10.1080/08898480.2021.1949923
https://doi.org/10.1080/08898480.2021.1949923
Publikováno v:
Statistics in Transition, Vol 22, Iss 1 (2021)
Zaman and Bulut (2018a) developed a class of estimators for a population mean utilising LMS robust regression and supplementary attributes. In this paper, a family of estimators is proposed, based on the adaptation of the estimators presented by Zama
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46c45b88d6f8ee63bbc911cb5a509897
https://doi.org/10.21307/stattrans-2021-012
https://doi.org/10.21307/stattrans-2021-012
Autor:
Derya Karagöz, Nursel Koyuncu
Publikováno v:
Computational Statistics. 36:1093-1121
Presence of outliers or contamination in the process control affect the construction of quality control limits badly. Therefore, more attention is to paid robust methods describing the data majority. The main focus of this study is to construct robus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82fc19b838fdb2ac4d6e599fa103f79d
https://doi.org/10.1007/s00180-020-01051-6
https://doi.org/10.1007/s00180-020-01051-6
Autor:
Nursel Koyuncu, Derya Karagöz
Publikováno v:
Soft Computing. 24:17195-17204
Neoteric ranked set sampling (NRSS) is defined as an efficient sampling design compared to counterparts in the literature. NRSS differs from ranked set sampling (RSS) by selecting ordered sample units, and this design provides more accurate results f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a8cb311f772a152736bdf0ad7222c83
https://doi.org/10.1007/s00500-020-05012-5
https://doi.org/10.1007/s00500-020-05012-5
Autor:
Nihal Ata Tutkun, Nursel Koyuncu
Publikováno v:
Volume: 49, Issue: 1 458-477
Hacettepe Journal of Mathematics and Statistics
Hacettepe Journal of Mathematics and Statistics
The proportional hazards model is one of the most common model for analyzing survival data. Only proportional hazards assumption is required to apply this model. Using appropriate sampling methods is an important part of modelling data and estimation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f6591f50172214f73bc4e4134b4d54a
https://doi.org/10.15672/hujms.617303
https://doi.org/10.15672/hujms.617303
Autor:
Nursel Koyuncu, Arzu Ece Çetin
Publikováno v:
Volume: 69, Issue: 1 560-575
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics
In this article, we have compared the performance ratio-type estimators in some stratified ranked set sampling methods. These sampling methods are stratified random sampling, stratified ranked set sampling, stratified double ranked set sampling and s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daaf9bcfc79e047fbf7fda9adadbec89
https://doi.org/10.31801/cfsuasmas.649909
https://doi.org/10.31801/cfsuasmas.649909