Table 3.

Square root of mean square error (RMSE) relative to RMSE of fully-weighted estimator, and true coverage of the 95% CI or PPI of population mean estimator under the model μ_C that is consistent with weight trimming.

	RMSE relative to FWT					True Coverage
n = 100	Variance log₁₀					Variance log₁₀
Estimator	−2	0	2	4	6	−2	0	2	4	6
UNWT	358.35	37.72	2.90	0.54	0.42	0	0	0	93	98
FWT	1	1	1	1	1	93	92	85	92	88
TWT3	36.80	3.92	0.65	0.70	0.65	0	0	94	96	96
TWT7	3.65	1.62	0.88	0.84	0.84	6	77	93	92	96
PWT	1.01	0.94	0.92	0.91	0.89	95	98	90	96	95
PWTF1	1.06	0.89	0.83	0.81	0.80	94	97	91	96	95
PWTF2	1.04	0.89	0.86	0.85	0.83	94	97	92	96	94

n = 500
UNWT	739.48	72.52	7.78	0.69	0.39	0	0	0	80	98
FWT	1	1	1	1	1	98	96	98	96	96
TWT3	76.14	7.56	1.02	0.64	0.63	0	0	88	97	98
TWT7	8.96	2.63	1.15	0.82	0.80	0	29	97	99	100
PWT	1.03	0.91	0.84	0.83	0.81	94	94	98	92	96
PWTF1	1.09	0.85	0.76	0.76	0.72	92	96	99	95	96
PWTF2	1.06	0.87	0.82	0.82	0.79	94	95	98	95	96