Table 5 ANOVA for central composite design model (CCD).

From: Biodegradation of chlorpyrifos using isolates  from contaminated agricultural soil, its kinetic studies

Source

DF

Adj SS

Adj MS

F

P

Regression

14

17,523.8

1251.70

4.09

0.004

Linear

4

9282.5

2320.63

7.58

0.001

Concentration

1

3360.7

3360.67

10.97

0.004

Temperature

1

160.2

160.17

0.52

0.480

Carbon

1

888.2

888.17

2.90

0.108

Inoculum

1

4873.5

4873.50

15.91

0.001

Square

4

7473.6

1868.39

6.10

0.004

Concentration * concentration

1

95.9

95.93

0.31

0.584

Temperature * temperature

1

2625.3

2625.26

8.57

0.010

Carbon * carbon

1

3126.6

3126.64

10.21

0.006

Inoculum * inoculum

1

3277.9

3277.93

10.70

0.005

Interaction

6

767.8

127.96

0.42

0.857

Concentration * temperature

1

1.0

1.00

0.00

0.955

Concentration * carbon

1

132.2

132.25

0.43

0.520

Concentration * inoculum

1

0.2

0.25

0.00

0.978

Temperature * carbon

1

9.0

9.00

0.03

0.866

Temperature * inoculum

1

25.0

25.00

0.08

0.779

Carbon * inoculum

1

600.3

600.25

1.96

0.181

Residual error

16

4901.4

306.34

  

Lack-of-fit

10

4898.6

489.86

1050.7

0.000

Pure error

6

2.8

0.47

  

Total

30

22,425.2