From the empirical investigation, it could be observed that when population units are arranged in order of magnitude, a more precise estimate is obtained for ( ) Sy Vy and ( ) st Vy when compared with the use of SRS estimator ( ) SRE Vy .
From the empirical investigation, it could be observed that when population units are arranged in order of magnitude, a more precise estimate is obtained for ( ) SyVy and( ) stVy when compared with the use of SRS estimator ( ) SREVy .