From: Optimization of the production process for the anticancer lead compound illudin M: process development in stirred tank bioreactors
df
SS
MS
F value
Pr > F
x1
1
2917
0.1729
0.692014
x2
201,936
11.9708
0.013469
x12
5842
0.3463
0.577659
x22
373,285
22.1283
0.003312
x1: x2
66,045
3.9152
0.095198
Residuals
6
101,214
16,869