* Comparing Running Time for Junior High Boys and Girls;

data running;

 label class = 'Grade in School'

       time1 = 'Running Time for First Race'

       time2 = 'Running Time for Second Race';



class    sex    minute1    second1    minute2    second2    time1    time2

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  8       M        1          18         1          30        78       90

  8       F        1          27         1          45        87      105

  8       M        1          10         1          17        70       77

  7       F        1          48         1          70       108      130

  7       F        1          25         1          42        85      102

  8       F        1          27         1          45        87      105

  7       F        1          32         1          53        92      113

  9       F        1          21         1          35        81       95

  7       M        1          28         1          47        88      107

  9       M        1          15         1          25        75       85

  9       M        1          34         1          57        94      117

  9       F        2          20         1          33       140       93

  7       M        1          11         1          18        71       78

  8       F        1          25         1          42        85      102

  7       M        1          16         1          27        76       87

  9       M        1          16         1          27        76       87

  9       F        1          17         1          28        77       88

  8       M        1           6         1          10        66       70