Analysis of Variance Table

Response: rGDP

DF

Sum Sq

Mean Sq

F Value

Pr (>F)

Speed

1

0.558

0.558

1.0667

0.377649

NTrks

1

0.183

0.183

0.3501

0.595705

VRPStr

2

7.144

3.572

6.83

0.076406

.

IntrDep

1

42.584

42.584

81.4359

0.002873

**

Residuals

3

1.569

0.523

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Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1‘’1