4.5.4. Use the data of Exercise 4.5.3 to test whether the fitness scores for farm boys are more or less variable than fitness scores for town boys.

Table 4.6: Physical fitness of male high school seniors.

Town 12.7 16.9 7.6 2.4 6.2 9.9 Boys 14.2 7.9 11.3 6.4 6.1 10.6 12.6 16.0 8.3 9.1 15.3 14.8 2.1 10.6 6.7 6.7 10.6 5.0 17.7 5.6 3.6 18.6 1.8 2.6 11.8 5.6 1.0 3.2 5.9 4.0 Farm 14.8 7.3 5.6 6.3 9.0 4.2 Boys 10.6 12.5 12.9 16.1 11.4 2.7 Table 4.7: Turtle lengths.
Females Males 98 138 123 155 121 104 116 93 103 138 133 155 125 106 117 94 103 141 133 158 127 107 117 96 105 147 133 159 128 112 119 101 109 149 134 162 131 113 120 102 123 153 136 177 135 114 120 103 Table 4.8: Verbal ability test scores.
8 yr. olds 10 yr. olds 324 344 448 428 399 414 366 390 372 366 412 396 322 434 364 386 436 398 350 404 452