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Table 12 Test of significance for every regression coefficient

From: Brette Pearl Spar Mable (BPSM): a potential recoverable catalyst as a renewable source of biodiesel from Thevetia peruviana seed oil for the benefit of sustainable development in West Africa

Source

DF

Seq. SS

Contribution (%)

Adj. SS

Adj. MS

F-Value

P-Value

X1

1

561.13

34.81

561.13

561.13

13467.00

0.00

X2

1

4.50

0.28

4.50

4.50

108.00

0.00

X3

1

190.13

11.79

190.13

190.13

4563.00

0.00

X12

1

6.70

0.42

0.23

0.23

5.54

0.06

X22

1

381.50

23.67

446.77

446.77

10722.46

0.00

X32

1

467.31

28.99

467.31

467.31

11215.38

0.00

X1X2

1

0.25

0.02

0.25

0.25

6.00

0.05

X2X3

1

0.25

0.02

0.25

0.25

6.00

0.05

  1. Where: DF Degree of Freedom, Seq. SS Sequential Sum of Square, Adj. SS Adjusted Sum of Square, Adj. MS Adjusted Mean Square, F Fischer, P Probability