| Test the hypothesis that the two trainers are equally adept at training a horse to run faster? The first trainer gave the results for his last five horses | ||||||
| horse1 | horse2 | horse3 | horse4 | horse5 | ||
| Before Training | 26.3 | 24.1 | 27.6 | 25.3 | 26.8 | |
| After Training | 23.3 | 22 | 24.1 | 22.8 | 23 | |
| The second | ||||||
| horse1 | horse2 | horse3 | horse4 | horse5 | ||
| Before Training | 25.4 | 26.2 | 24 | 26 | 27.7 | |
| After Training | 23.6 | 23.9 | 21.8 | 23.6 | 25.7 | |


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