Table 5.
Results of the ordinary least squares regression of clicks per impression and page views per impression relative to the number of impressions and optimization.
| Estimator | Coefficient | SE | P value | |
| Clicks per impression (C/I) | ||||
|
|
Constant | 0.0415 | 0.003 | <.001 |
|
|
Optimization (O) | 0.0213 | 0.007 | .004 |
|
|
Impressions (I) | −6.977e-07 | <0.001 | <.001 |
|
|
Optimization×impressions (O*I) | 5.938e-07 | <0.001 | .003 |
|
|
F statistic (df) | 85.29 (3,27) | —a | <.001 |
|
|
R 2 | 0.905 | — | — |
|
|
Adjusted R2 | 0.894 | — | — |
| Page views per impression (V/I) | ||||
|
|
Constant | 0.0220 | 0.002 | <.001 |
|
|
Optimization (O) | −0.0081 | 0.005 | .10 |
|
|
Impressions (I) | −5.827e-07 | <0.001 | <.001 |
|
|
Optimization×impressions (O*I) | <0.001 | <0.001 | <.001 |
|
|
F statistic (df) | 25.45 (3,27) | — | <.001 |
|
|
R 2 | 0.739 | — | — |
|
|
Adjusted R2 | 0.710 | — | — |
aNot applicable.