Table 2 Analysis of variance results for the regression (peach)

Model

9

0.2400

0.027

17.41

0.0005

X₁

1

0.0084

0.0084

5.52

0.0512

X₂

1

0.0045

0.0045

2.95

0.1298

X₃

1

0.0378

0.0378

24.68

0.0016

X₁X₂

1

2.500

2.500

0.016

0.9019

X₁X₃

1

2.500

2.500

0.016

0.9019

X₂X₃

1

0.0009

0.0009

0.59

0.4685

\( {\mathrm{X}}_1^2 \)

1

0.0979

0.0979

63.91

<0.0001

\( {\mathrm{X}}_2^2 \)

1

0.0341

0.0341

22.26

0.0022

\( {\mathrm{X}}_3^2 \)

1

0.038

0.038

24.80

0.0016

Lack of fit

3

0.007725

0.002575

3.43

0.1322

Model

9

0.2336

0.026

12.86

0.0014

X₁

1

0.0024

0.0024

1.21

0.3070

X₂

1

0.0097

0.0097

4.85

0.0634

X₃

1

0.0024

0.0024

1.21

0.3070

X₁X₂

1

0.0006

0.0006

0.31

0.5952

X₁X₃

1

0.0042

0.0042

2.09

0.1912

X₂X₃

1

0.0306

0.0306

15.17

0.0059

\( {\mathrm{X}}_1^2 \)

1

0.1047

0.1047

51.91

0.0002

\( {\mathrm{X}}_2^2 \)

1

0.0254

0.0254

12.61

0.0093

\( {\mathrm{X}}_3^2 \)

1

0.0362

0.0362

17.94

0.0039

Lack of fit

3

0.0087

0.0029

3.88

0.1117