Improved Estimation of Finite Population Variance Using Dual Supplementary Information under Stratified Random Sampling

Table 12

Percentage relative efficiency (PRE) of estimators using populations I–IV.

Estimators	Population-I	Population-II	Population-III	Population-IV
	100	100	100	100
	104.724	712.430	434.2893	856.4677
	162.280	887.700	553.8475	1008.704
	173.523	909.799	219.4736	1966.885
	139.333	254.412	206.7089	255.34
	55.49881	208.246	6695.05	180.4478
	175.144	965.644	5293.644	3263.711
	362.200	1020.00	7786.523	6056.276