Estimation of Finite Population Mean under Probability-Proportional-to-Size Sampling in the Presence of Extreme Values

Table 2

Variance of estimators for .

c	Estimators
	0.01	18535.1300	185.3317	185.1561
0.03	18535.1300	185.2926	185.0136
0.05	18535.1300	185.2536	184.9158
0.07	18535.1300	185.2145	184.8365
0.1	18535.1300	185.1561	184.7366
0.3	18535.1300	184.7680	184.2917
0.5	18535.1300	184.3831	183.9879
0.7	18535.1300	184.0014	183.7425
1.0	18535.1300	183.4349	183.4349
1.3	18535.1300	182.8756	183.1727
1.5	18535.1300	182.5067	183.0152
1.7	18535.1300	182.1411	182.8685
2.0	18535.1300	181.5985	182.6646