Hour interval | 1N | 2Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean | |
---|---|---|---|---|---|---|
 |  |  |  |  | Lower Bound | Upper Bound |
19:00~20:00 | 426 | 23.58 | 21.074 | 1.021 | 21.58 | 25.59 |
20:00~21:00 | 494 | 26.98 | 20.735 | 0.933 | 25.14 | 28.81 |
21:00~22:00 | 307 | 18.50 | 14.275 | 0.815 | 16.90 | 20.11 |
22:00~23:00 | 286 | 19.55 | 19.555 | 1.156 | 17.27 | 21.82 |
23:00~0:00 | 255 | 11.68 | 10.689 | 0.669 | 10.36 | 13.00 |
0:00~1:00 | 218 | 9.61 | 6.513 | 0.441 | 8.74 | 10.47 |
1:00~2:00 | 296 | 16.79 | 11.468 | 0.667 | 15.48 | 18.10 |
2:00~3:00 | 311 | 16.38 | 11.034 | 0.626 | 15.15 | 17.61 |
3:00~4:00 | 255 | 15.77 | 13.583 | 0.851 | 14.09 | 17.44 |
4:00~5:00 | 315 | 20.20 | 13.693 | 0.772 | 18.68 | 21.72 |
5:00~6:00 | 232 | 14.86 | 12.238 | 0.803 | 13.28 | 16.45 |
6:00~7:00 | 313 | 16.97 | 12.395 | 0.701 | 15.60 | 18.35 |
Total | 3,708 | 18.59 | 16.091 | 0.264 | 18.07 | 19.11 |