Table 5.

Contribution analysis of independent variables

variable	average predicated value										average MSE
	N1	N2	N3	N4	N5	N6	N7	N8	N9	N10
x1	49.97	57.23	64.16	70.35	75.38	78.91	80.62	80.30	77.82	73.18	47.1928
x2	45.28	47.28	49.62	52.87	57.59	64.22	73.10	84.41	98.16	114.19	504.2573
x3	53.97	60.00	64.44	67.32	68.73	68.79	67.64	65.44	62.37	58.61	225.4837

x1: density of seeded cells; x2: amount of plasmid; x3: amount of LipofectAMINE