Table 1: Ranges of movement for the four groups.

Group N Mean Standard deviation 95% Confidence Interval Minimum Maximum
Lower Bound Upper Bound
A 24 277.4 32.5 263.7 291.2 215 335
B 28 283.4 24.5 273.8 292.9 218 338
C 27 314.0 28.6 302.7 325.3 251 360
D 85 318.7 22.4 313.9 323.6 245 364
Total 164 305.9 30.7 301.1 310.6 215 364