Table 4 ANOVA of FS.

From: Optimisation of areca nut husk-derived cellulose nanofibers for enhancing the mechanical properties of epoxy composites using response surface methodology

Source

Sum of squares

df

Mean square

F-value

p-value

Model

3074.0

9

341.56

550.72

< 0.0001 significant

A-CNF content

1021.29

1

1021.29

1646.71

< 0.0001

B-Mixing time

338.26

1

338.26

545.4

< 0.0001

C-Curing temperature

804.61

1

804.61

1297.43

< 0.0001

AB

112.68

1

112.68

181.68

< 0.0001

AC

80.28

1

80.28

129.44

< 0.0001

BC

2.45

1

2.45

3.95

0.075

A2

179.72

1

179.72

289.77

< 0.0001

B2

291.76

1

291.76

326.2

< 0.0001

C2

129.87

1

129.87

209.44

< 0.0001

Residual

6.2

10

0.62

  

Lack of fit

2.12

3

0.7052

1.21

0.3749

Pure error

4.09

7

0.5838

  

Cor total

3080.2

19

   
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