Keywords = Auxiliary variable
A novel improved class of ratio-product type exponential estimators of population variance

Volume 29, Issue 4, July and August 2022, Pages 2115-2133


F. Naz; T. Nawaz; M. Abid; T. Pang

An improved and robust class of variance estimator

Volume 28, Issue 6, November and December 2021, Pages 3589-3601


M. Abid; R. A. Kh. Sherwani; M. Tahir; H. Z. Nazir; M. Riaz

Hartley-Ross type unbiased estimators of population mean using two auxiliary variables

Volume 26, Issue 6, November and December 2019, Pages 3835-3845


M. Javed; M. Irfan; T. Pang

Improved Ratio Estimators of Variance Based on Robust Measures

Volume 26, Issue 4, July and August 2019, Pages 2484-2494


M. Abid; S. Ahmed; M. Tahir; H. Zafar Nazir; M. Riaz

Efficient ratio-type estimators of finite population mean based on correlation coefficient

Volume 25, Issue 4, July and August 2018, Pages 2361-2372


Muhammad Irfan; Maria Javed; Zhengyan Lin