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. 2016 Jan 20;14:1. doi: 10.1186/s40201-016-0244-0

Table 5.

Results of the regression analysis of the central composite design (CCD)

Source Sum of Squares Degrees of freedom Mean Square F-value P-value Prob > F Significance
Model 39501352.1 9 4389039.1 20.5 <0.0001 significant
Residual 2141646.9 10 214164.7
Lack of Fit 1749316.7 5 349863.3 4.5 0.0633 not significant
Pure Error 392330.2 5 78466.0
Cor Total 41642999.1 19
R2 0.95