Author Details

Khan, Lakhkar, Quaid-i-Azam University, Islamabad, Pakistan., Pakistan

  • Vol. 11 No. 3, 2015 - Peer Reviewed Articles
    An Ecient Class of Estimators of Population Mean in Two-Phase Sampling Using Two Auxiliary Variables
    Abstract  PDF
  • Vol. 12 No. 3, 2016 - Peer Reviewed Articles
    Improved Ratio-type Estimators of Population Mean In Ranked Set Sampling Using Two Concomitant Variables
    Abstract  PDF