Five runners ran a marathon before they used a new training program. The same five runners also ran a marathon after they went through the new training program. The following data represents the completion time of a marathon in minutes for each of the 5 runners before and after training with the new training program. The trainer wants to determine if the training program results in faster completion time of the marathon. (You can use Excel for solving this problem).
Runner Before After
1 110 94
2 88 81
3 84 82
4 94 88
5 108 97
1. What is the observed value of the test statistic?
A) 3.53
B) 1.179
C) 1.924
D) 2.732
E) 0.417
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