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

10.24200/sci.2020.53481.3260

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

10.24200/sci.2020.52986.2986

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

10.24200/sci.2018.5648.1397

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

10.24200/sci.2018.20604

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

10.24200/sci.2017.4455

Muhammad Irfan; Maria Javed; Zhengyan Lin