Improved estimation of kurtosis parameters for two multivariate populations
- Авторлар: Zahra N.1, Lisawadi S.1, Ahmed S.1
-
Мекемелер:
- Department of Mathematics and Statistics
- Шығарылым: Том 38, № 1 (2017)
- Беттер: 110-115
- Бөлім: Article
- URL: https://journals.rcsi.science/1995-0802/article/view/198708
- DOI: https://doi.org/10.1134/S1995080217010218
- ID: 198708
Дәйексөз келтіру
Аннотация
Improved estimators for the kurtosis parameters of two multivariate populations are developed under the assumption that they are equal. Shrinkage and preliminary test estimators are proposed and their asymptotic properties are presented analytically and numerically. Comparisons of the suggested estimators are made on the basis of their asymptotic distributional biases and asymptotic quadratic risks. It is observed that the suggested estimators perform better than the estimator based on the sample data only in a wider range of parametric space.
Авторлар туралы
Nighat Zahra
Department of Mathematics and Statistics
Хат алмасуға жауапты Автор.
Email: nighat.zahra@hotmail.com
Таиланд, Bangkok
Supranee Lisawadi
Department of Mathematics and Statistics
Email: nighat.zahra@hotmail.com
Таиланд, Bangkok
S. Ahmed
Department of Mathematics and Statistics
Email: nighat.zahra@hotmail.com
Канада, St. Catharines, ON