Enhanced Estimation of the Population Mean Using Two Auxiliary Variables under Probability Proportional to Size Sampling

Table 6

Percentage relative efficiency using simulated data I–IV.

Estimators	Population I	Population II	Population III	Population IV
	100	100	100	100
	464.3814	1085.529	62.63419	113.1176
	28.12125	26.67967	25.06361	19.29012
	470.6782	1086.011	124.9428	231.5562
	258.9004	316.4318	117.6493	230.6734
	48.62409	46.64071	48.86101	38.70724
	470.8428	1087.72	125.0442	244.9634
	470.7056	1086.344	124.9505	233.8571
	470.8685	1088.296	125.0341	247.7712
	100.0215	100.0597	100.0239	101.8007
	888.4242	2121.199	180.8025	409.523
	888.4236	2121.193	180.8023	409.1696
	888.4242	2121.199	180.8025	409.5405
	888.4159	2121.104	180.7987	408.2019
	888.424	2121.197	180.8025	409.4457
	888.4214	2121.163	180.8019	409.0597
	888.4242	2121.199	180.8025	409.5145
	888.4241	2121.198	180.8025	409.5142
	888.4235	2121.193	180.802	409.0633
	888.387	2120.847	180.7854	406.9234