N | Mean | Std. deviation | Minimum | Maximum | |||||||
Base | 30 | 6.4833 | 0.38245 | 5.50 | 7.20 | ||||||
0 | 30 | 6.8767 | 0.28246 | 6.30 | 7.20 | ||||||
5 | 30 | 6.6067 | 0.23771 | 6.00 | 7.00 | ||||||
10 | 30 | 6.4200 | 0.21238 | 6.00 | 6.80 | ||||||
15 | 30 | 6.4067 | 0.25452 | 6.00 | 7.20 | ||||||
20 | 30 | 6.3000 | 0.20172 | 5.80 | 6.80 |
F = 17.221; p < 0.001