Table 2.
Comparison of the population per square mile by U.S. Region.
| Census Region | Mean Difference | 95% Confidence Interval of Mean |
Significance | ||
|---|---|---|---|---|---|
| Lower Bound | Upper Bound | ||||
| South Region | Midwest Region | 4683.24 | −5303.37 | 14669.84 | 0.618 |
| West Region | 13372.46 | 4125.14 | 22619.78 | 0.001 | |
| Northeast Region | −6128.50 | −16024.57 | 3767.58 | 0.380 | |
| Midwest Region | South Region | −4683.24 | −14669.84 | 5303.37 | 0.618 |
| West Region | 8689.22 | 3870.02 | 13508.42 | 0.0001 | |
| Northeast Region | −10811.74 | −16729.97 | −4893.50 | 0.0001 | |
| West Region | South Region | −13372.46 | −22619.78 | −4125.14 | 0.001 |
| Midwest Region | −8689.22 | −13508.42 | −3870.02 | 0.0001 | |
| Northeast Region | −19500.96 | −23957.66 | −15044.25 | 0.0001 | |
| Northeast Region | South Region | 6128.50 | −3767.58 | 16024.57 | 0.380 |
| Midwest Region | 10811.74 | 4893.4993 | 16729.97 | 0.0001 | |
| West Region | 19500.96 | 15044.25 | 23957.66 | 0.0001 | |