Table 3.

Posterior estimates of θ (where θ = (θ₀, θ₁, θ₂)) and the observed utility using the data subset obtained via the designed approach and using the full data sets that were simulated under different covariance structures of X.

Full or subset data	Covariance Structure of X	$\widehat{\mathit{\theta }}$	observed utility
Subset	No correlation	(−1.11, 0.33, 0.11)	18.9
Full	No correlation	(−1.02, 0.31, 0.10)	24.7
Subset	Positive correlation	(−0.91, 0.27, 0.13)	19.3
Full	Positive correlation	(−1.00, 0.31, 0.10)	24.4
Subset	Negative correlation	(−1.04, 0.31, 0.15)	17.3
Full	Negative correlation	(−1.03, 0.32, 0.12)	24.6