KUMAR, B. .; KUMAR, M. .; RIZVI, S. .; BHAT, M. I. J. . ESTIMATION OF POPULATION MEAN THROUGH IMPROVED CLASS OF RATIO TYPE ESTIMATORS USING AUXILIARY INFORMATION. Journal of Reliability and Statistical Studies, [S. l.], v. 11, n. 01, p. 01–07, 2018. Disponível em: https://journals.riverpublishers.com/index.php/JRSS/article/view/20891. Acesso em: 22 apr. 2026.