Note

p-value prob ˃ F

F-value

Mean square

Df

Sum of squares

Source

significant

<0.0001

154.45

452.07

2

904.14

Model

<0.0001

178.77

523.26

1

523.26

B-Fe₂(So₄)₃

<0.0001

130.13

380.88

1

380.88

C-temp

significant

0.0026

20.74

60.71

1

60.71

Curvature

2.93

7

20.49

Residual

not significant

0.0856

10.98

3.95

5

19.77

Lack of Fit

0.36

2

0.72

Pure Error

10

985.34

Cor Total