Explanatory Variable

Regression Coefficient Estimate

Standardised Regression Estimate

Student t value

Probability level of significance

Variance inflation factor

CONSTANT

−45.617

0.000

−2.948

0.005***

0.000

SEX

8.101

0.196

1.672

0.101

1.107

STUDENT

−13.077

−0.122

−1.052

0.298

1.095

USE RATE

4.508

0.374

3.147

0.003***

1.143

BUSINESS OR WORK USE

16.586

0.409

3.476

0.001***

1.116

OVERALL USEFULNESS

8.023

0.289

2.373

0.022**

1.201

R²

Adjusted R²

F value

0.406***

0.344***

6.550***

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

0.134