Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Tolga Zaman"'
Improvement in variance estimation using transformed auxiliary variable under simple random sampling
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract This paper offers a novel approach to formulate efficient ratio estimator of the population variance using a transformed auxiliary variable. The impact of transformation on auxiliary information has also been discussed. It is observed that i
Externí odkaz:
https://doaj.org/article/845fdd165f0440869f38b4816ad07afa
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract This paper proposes a new calibration estimator for population variance within a stratified two-phase sampling design. It takes into account random non-response and measurement errors, specifically applying this method to estimate the varian
Externí odkaz:
https://doaj.org/article/c33af54e06e343fc9ab474f90cf510fd
Publikováno v:
Heliyon, Vol 10, Iss 6, Pp e27738- (2024)
This paper introduces a new method to estimate the population variance of a study variable in stratified successive sampling over two occasions, while accounting for random non-response. The method uses a logarithmic type estimator and leverages info
Externí odkaz:
https://doaj.org/article/533946f72f11406e9dfb5bc256328c65
Autor:
Zaman, Tolga
Tez (doktora) -- Ondokuz Mayıs Üniversitesi, 2017 Libra Kayıt No: 118196 …
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______9773::5056f11ac05312095a6240033146ca47
http://libra.omu.edu.tr/tezler/118196.pdf
http://libra.omu.edu.tr/tezler/118196.pdf
Autor:
Tolga Zaman, Kamil Alakuş
Publikováno v:
Revstat Statistical Journal, Vol 21, Iss 1 (2023)
In this study, we provide Theil-Sen parameter estimators, which are in multiple linear regression model based on a spatial median, to be examined by the jackknife method. To obtain the proposed estimator, apply the jackknife to a multivariate Theil-S
Externí odkaz:
https://doaj.org/article/6deb96100f6f49cdb7b871c3cbf6ec40
Publikováno v:
Axioms, Vol 12, Iss 6, p 558 (2023)
It is well known that ranked set sampling (RSS) is more efficient than simple random sampling (SRS). Furthermore, the presence of missing data vitiates the conventional results. Only a minuscule amount of work has been conducted under RSS with missin
Externí odkaz:
https://doaj.org/article/c3c1be6e5adc41d88b1d1d8658221eab
Autor:
Zaman, Tolga
Tez (yüksek lisans) -- Ondokuz Mayıs Üniversitesi, 2013 Libra Kayıt No: 65870 …
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______9773::338d7ce144e3c51ac55831134141c43f
http://libra.omu.edu.tr/tezler/65870.pdf
http://libra.omu.edu.tr/tezler/65870.pdf
Autor:
Tolga Zaman, Cem Kadilar
Publikováno v:
AIMS Mathematics, Vol 6, Iss 5, Pp 4265-4279 (2021)
In this study, we propose exponential ratio estimators in the stratified two-phase sampling utilizing an auxiliary attribute. The expressions for the mean squared error of these exponential-type estimators under two different cases are derived and th
Externí odkaz:
https://doaj.org/article/98dd6e4c24904c1cb4559518c5469f6f
Autor:
Usman Shahzad, Ishfaq Ahmad, Amelia V. García-Luengo, Tolga Zaman, Nadia H. Al-Noor, Anoop Kumar
Publikováno v:
Mathematics, Vol 11, Iss 1, p 252 (2023)
One of the most useful indicators of relative dispersion is the coefficient of variation. The characteristics of the coefficient of variation have contributed to its widespread use in most scientific and academic disciplines, with real life applicati
Externí odkaz:
https://doaj.org/article/2b202353f6ca43638f70a1d66e622dd9
Autor:
Tolga Zaman, Kamil Alakuş
Publikováno v:
Alphanumeric Journal, Vol 7, Iss 1, Pp 13-24 (2019)
In this study, the aim was to review the methods of parametric and non-parametric analyses in simple linear regression model. The least squares estimator (LSE) in parametric analysis of the model, and Mood-Brown and Theil-Sen methods that estimates t
Externí odkaz:
https://doaj.org/article/8a57c52fa0dc4f4894c669b0c0642e9e