A new class of median-based modified ratio estimators for finite population mean using known coefficient of variation, median, and quartiles

Authors

  • S. Saranya Department of Science and Humanities, Bharath Niketan Engineering College, Auntipatti,Theni - 625536, Tamilnadu, India.
  • R. Srija Department of Science and Humanities, Dhaanish Ahmed Institute of Technology, Coimbatore - 641 105, Tamilnadu, India
  • Srirekha Baskaran Department of Mathematics, SRM Institute of Science and Technology Ramapuram, Tamilnadu, India.
  • Visalakshi Subramanian Department of Mathematics, Sri Venkateswara College of Engineering, Sriperumbudur - 602 117, Tamilnadu, India.

Abstract

 The current study examines a few modified ratio estimators based on ratio cum medians for predicting the limited population means using linear combinations of known auxiliary variable parameters like. Quartiles and Median and Coefficient of Variation both algebraically and numerically, the suggested estimators' efficiency are evaluated against the sample mean and ratio estimator of simple random sampling without replacement (SRSWOR). The suggested estimators outperform both the Ratio estimator and the SRSWOR sample mean, according to the numerical comparison.

Published

08/30/2026