Variable | Total revenues (weighted least squares) ($million) | Average revenue per machine (ordinary least squares) ($/machine) | ||||
---|---|---|---|---|---|---|
Estimate | SE | p Value | Estimate | SE | p Value | |
Plaw(unit/month) | −2.404 | 3.302 | 0.468 | −1158.11 | 745.10 | 0.123 |
Time (unit/month) | 0.612 | 0.102 | <0.001 | 96.47 | 36.70 | 0.010 |
Time2 (unit/month2) | −0.005 | 0.001 | <0.001 | −0.31 | 0.278 | 0.259 |
Machines (unit/machine) | 0.003 | 0.001 | 0.024 | −2.424 | −2.762 | <0.001 |
Income (unit/$million) | 7.568 | 1.087 | <0.001 | 10717.00 | 467.00 | <0.001 |
Winter | −4.147 | 0.872 | <0.001 | −1353.01 | 314.79 | <0.001 |
n | 101 | 101 | ||||
R 2 | 0.669 | 0.639 |