Variable

Coefficient

Std. Error

t-Statistic

Prob.

C

7154.267

1038.229

6.890835

0.0000

Z

0.000112

1.42E−05

7.900839

0.0000

X3

−0.000135

3.17E−05

−4.258890

0.0002

R-squared

0.674670

F-statistic

33.18085

Adjusted R-squared

0.654337

Prob(F-statistic)

0.000000