Source Degree of freedom (DF) Sum of squares (SS) Mean of squares (MS) Statistics P-valuea
Model 8 27.1240 3.39049 258.39 0.000
Linear 3 12.0295 4.00984 305.59 0.000
Square 2 5.8410 2.92049 222.57 0.000
Interaction 3 9.2534 3.08448 235.07 0.000
Residual error 11 0.1443 0.01312    
Lack of fit 6 0.1015 0.01692 1.98 0.236
Pure error 5 0.0428 0.00856    
Total 19 27.2683 - -  
aSignificant at P<0.05
Table 4: Analysis of variance for mycoprotein production using face centered composite design.