Research Article

Enhanced Estimators of Population Variance with the Use of Supplementary Information in Survey Sampling

Table 4

PRE of estimators with respect to .

PRE ()

−1.00257.0391259.3591291.8213258.2640256.4163253.0021
−0.75255.2481257.2658275.3213256.0011253.9286252.8256
−0.50254.2359256.9329273.3492255.3651253.6165252.4152
−0.25253.9139256.1231273.1029254.9606253.0259252.0081
0.00253.1029255.8569273.0051254.0436252.8169251.5621
0.25252.9320255.0091272.9321253.8186252.0411251.0561
0.50253.1001254.8563272.3649253.5646251.9103250.3961
0.75254.2569254.6561272.1536253.3963251.3851250.0011
1.00254.2031254.5341271.9806252.8646251.0091249.5651