Variables

DF

Estimated coefficients

F-values

rpp

γpp

rcp

γcp

rgg

γgg

rpp

γpp

rcp

γcp

rgg

γgg

Model

9

73.94

79.24

70.75

74.21

69.87

74.53

3.75*

4.24*

3.69*

3.44*

3.25*

4.15*

x1

1

-0.52

-0.08

-0.29

-0.58

-0.51

-0.11

1.13

0.03

0.31

0.77

0.90

0.05

x2

1

-0.96

-0.95

-0.93

-0.40

-0.97

-1.03

3.77

3.81

3.14

0.36

3.30

4.36

x3

1

-0.86

-0.59

-0.70

-0.58

-0.89

-0.60

3.06

1.46

1.75

0.77

2.75

1.49

x1x2

1

1.09

2.34

1.17

2.82

1.01

2.16

2.85

13.52**

2.91

10.53**

2.10

11.30**

x1x3

1

0.36

-0.54

0.12

-0.98

0.26

-0.56

0.32

0.71

0.03

1.28

0.14

0.76

x2x3

1

0.16

1.29

-0.38

2.28

0.04

1.21

0.06

4.10

0.30

6.92*

0.00

3.55

x12

1

-2.12

-1.57

-2.50

-

-2.21

-1.67

19.58**

10.94**

23.65***

-

17.94**

12.17**

x22

1

0.53

0.62

0.19

-

0.46

0.66

1.22

1.74

0.14

-

0.79

1.90

x32

1

0.23

-0.51

0.10

-

0.16

-0.49

0.23

1.14

0.04

-

0.10

1.04

Lack of Fit

5

 

 

 

 

 

 

0.58

2.83

2.23

4.10

0.44

2.72

R2

 

0.77

0.79

0.77

0.61

0.74

0.79

 

 

 

 

 

 

R2vad

 

0.56

0.61

0.56

0.44

0.51

0.60

 

 

 

 

 

 

CV %

 

2.49

2.30

2.82

3.31

3.00

2.48

 

 

 

 

 

 


* Significant at p < 0.05; ** Significant at p < 0.01; ***Significant at p < 0.001
Table 2: Analysis of Varience (ANOVA) and regression coefficients of the second-order polynomial model for the response variables (in coded units).