Mean Estimation of a Sensitive Variable under Nonresponse Using Three-Stage RRT Model in Stratified Two-Phase Sampling

Table 6

PREs of different mean estimators for population II.

		20% nonresponse			30% nonresponse
		2	4	8	2	4	8
			0.2; 0.8	100; 100	100; 100	100; 100	100; 100	100; 100	100; 100
	0.2; 0.8	127.2439; 124.743	134.9012; 132.0578	140.8874; 137.8932	132.3932; 129.5512	142.3453; 139.1108	148.7683; 145.4079
	0.2; 0.8	122.2609; 120.2903	129.041; 126.7698	134.2996; 131.8971	125.1812; 123.0822	132.5172; 130.1927	137.133; 134.7617
	0.2; 0.8	131.2392; 128.2900	142.4024; 138.7723	151.5345; 147.4977	135.5274; 132.3433	147.4847; 143.7370	155.362; 151.3903
	0.2; 0.8	131.2432; 128.2935	142.4159; 138.7843	151.5557; 147.5168	135.5190; 132.3358	147.4734; 143.7269	155.3484; 151.378
	0.2; 0.8	131.3257; 128.3666	142.6600; 139.0018	151.9334; 147.8555	135.4225; 132.2500	147.3606; 143.6256	155.2214; 151.2631
	0.2; 0.8	131.8164; 128.8007	143.9719; 140.1695	153.8973; 149.6149	135.0548; 131.9230	147.0131; 143.3136	154.8764; 150.9510
	0.2; 0.8	131.2392; 128.2900	142.4024; 138.7723	151.5345; 147.4977	135.5274; 132.3433	147.4847; 143.7370	155.3620; 151.3903
	0.2; 0.8	131.3706; 128.4064	142.7725; 139.102	152.1017; 148.0064	135.4173; 132.2454	147.3736; 143.6373	155.2473; 151.2865
	0.2; 0.8	131.3901; 128.4236	142.8146; 139.1394	152.1626; 148.0610	135.4314; 132.2580	147.4051; 143.6656	155.2916; 151.3266
	0.2; 0.8	131.2759; 128.3225	142.5122; 138.8701	151.7049; 147.6506	135.4828; 132.3036	147.432; 143.6897	155.3024; 151.3364
	0.2; 0.8	131.4914; 128.5132	143.0900; 139.3848	152.5798; 148.4349	135.3591; 132.1936	147.3393; 143.6065	155.2284; 151.2694
	0.2; 0.8	131.2487; 128.2984	142.4368; 138.8029	151.5894; 147.5469	135.5019; 132.3206	147.4493; 143.7052	155.3188; 151.3512
	0.2; 0.8	131.3516; 128.3895	142.7266; 139.0611	152.0335; 147.9453	135.4151; 132.2434	147.3612; 143.6262	155.2275; 151.2686