Keywords = Efficiency
Chain ratio-type estimator of finite population mean under two-phase sampling in systematic sampling scheme

Volume 4, Issue 1, April 2021, Pages 15-28

10.22121/aotp.2021.259490.1058

Ishaq Olatunji Olawoyin; Audu Ahmed; Mathew Olaniyi Olayiwola; Sikiru Adeyinka Abdulazeez