Table 8. Determination assigned value of ImpC (n=18)

Parameter	Iteration
	0	1st iteration	2nd iteration	3rd iteration
x*+δ	99.499	99.497	99.497	99.497
x*−δ	99.471	99.469	99.469	99.469
x*	99.485	99.483	99.483	99.483
s*	0.010	0.009	0.009	0.009
δ=1.5×s*	0.014	0.014	0.014	0.014