Table 7.

Statistical lower bound, upper bound and the estimators for quality evaluation for 10 repetition with $Q$ = 60 and w₁ = 0.5.

Goal	Lower bound		Upper bound		Gap estimators
	${\overline{f}}_{Q,R}$	${\sigma }_{{\overline{f}}_{Q,R}}^2$	${\hat{f}}_{Q^{’}}\left(\hat{x}\right)$	${\sigma }_{{\hat{f}}_{Q^{’}}\left(\hat{x}\right)}^2$	$ga{p}_{Q,R,Q^{’}}\left(\hat{x}\right)$	%	${\sigma }_{gap}^2$
Cost	46,497,296	999,620	47,088,714	803,281	591,418	1.27	1,282,381
Risk	100,656,751	2,256,733	99,560,882	9,314,344	−1,095,869	−1.09	9,583,833