ANOVA for response surface quadratic model.

Factors	Statistics
	Sum of squares	df	Mean square	F-Value	P-Value
Model	0.77	14	0.055	10.48	< 0.0001
A-IPTG concentration	0.0006	1	0.0006	0.11	0.7394
B-induced cell density	0.013	1	0.013	2.52	0.1333
C-induction temperature	0.001204	1	0.001204	0.23	0.638
D-induction culture time	0.017	1	0.017	3.27	0.0907
AB	0.0005063	1	0.0005063	0.097	0.7598
AC	0.0005063	1	0.0005063	0.097	0.7598
AD	0.0007563	1	0.0007563	0.14	0.7089
BC	0.021	1	0.021	4.03	0.0632
BD	0.0016	1	0.0016	0.31	0.5881
CD	0.001225	1	0.001225	0.23	0.6352
A2	0.3	1	0.3	57.97	< 0.0001
B2	0.28	1	0.28	53.37	< 0.0001
C2	0.24	1	0.24	46.22	< 0.0001
D2	0.18	1	0.18	35.26	< 0.0001
Residual	0.078	15	0.005223
Lack of fit	0.078	10	0.007834
Pure error	0	5	0
Cor total	0.84	29
R 2 = 0.9073	Adj R2 = 0.8207