ANOVA test | Rank test | ||||||
No. cities | Mean | (SE) | p-value | Median | p-value | ||
Season |
| ||||||
Spring (Mar, Apr, May) | 161 | 95.02 | (1.35) | <.0001 | 91.67 | <.0001 | |
Summer (Jun, Jul, Aug) | 161 | 78.86 | (1.05) | ref | 75.93 | ref | |
Fall (Sep, Oct, Nov) | 161 | 89.30 | (1.37) | <.0001 | 84.16 | 0.003 | |
Winter ( Dec, Jan, Feb) | 161 | 119.58 | (2.19) | <.0001 | 108.57 | <.0001 | |
Region | |||||||
North | 22 | 117.36 | (2.73) | <.0001 | 110.00 | <.0001 | |
Northeast | 16 | 90.06 | (1.89) | 0.021 | 87.16 | <.0001 | |
East | 50 | 99.23 | (1.26) | <.0001 | 93.71 | <.0001 | |
South central | 43 | 85.18 | (1.66) | 0.238 | 77.46 | 0.436 | |
Southwest | 15 | 81.54 | (2.72) | ref | 71.02 | ref | |
Northwest | 15 | 102.39 | (2.79) | <.0001 | 97.05 | <.0001 |