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Jackknife empirical likelihood for the error variance in linear models

Hui-Ling Lin, Zhouping Li, Dongliang Wang and Yichuan Zhao

Journal of Nonparametric Statistics, 2017, vol. 29, issue 2, 151-166

Abstract: Variance estimation is a fundamental yet important problem in statistical modelling. In this paper, we propose jackknife empirical likelihood (JEL) methods for the error variance in a linear regression model. We prove that the JEL ratio converges to the standard chi-squared distribution. The asymptotic chi-squared properties for the adjusted JEL and extended JEL estimators are also established. Extensive simulation studies to compare the new JEL methods with the standard method in terms of coverage probability and interval length are conducted, and the simulation results show that our proposed JEL methods perform better than the standard method. We also illustrate the proposed methods using two real data sets.

Date: 2017
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