Table 6 ANOVA for the reduced cubic model.

From: Preparation of magnetite nanoparticles and their application in the removal of methylene blue dye from wastewater

Source

Sum of squares

df

Mean square

F value

p value

 

Model

25,633.59

8

3204.20

32.05

< 0.0001

Significant

A-Cata.Dose

29.65

1

29.65

0.2965

0.6009

 

B-peroxide dose

152.28

1

152.28

1.52

0.2522

 

C-pH

1396.03

1

1396.03

13.96

0.0057

 

AB

345.96

1

345.96

3.46

0.0999

 

A2

6179.60

1

6179.60

61.82

< 0.0001

 

B2

1455.11

1

1455.11

14.56

0.0051

 

C2

11,011.79

1

11,011.79

110.15

< 0.0001

 

A2B

997.26

1

997.26

9.98

0.0134

 
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