Explanatory Variable

Regression Coefficient Estimate

Standardised Regression Estimate

Student t value

Probability level of significance

Variance inflation factor

CONSTANT

−53.551

0.000

−2.333

0.024**

0.000

SEX

9.695

0.171

1.387

0.172

1.137

STUDENT

−14.490

−0.101

−0.834

0.409

1.097

USE RATE

5.515

0.340

2.744

0.009***

1.151

BUSINESS OR WORK USE

24.566

0.441

3.556

0.001***

1.157

OVERALL USEFULNESS

9.401

0.234

1.845

0.072

1.212

R²

Adjusted R²

F value

0.387***

0.321***

5.814***

Probability level of significance of normality of the regression error term based on the Shapiro-Wilk test of normality.

0.003***