Time to Exhaustion (minutes) Cyclist 2 3 4 7 Chocolate Milk 23.85 51.09 38.30 26.11 35.54 26.14 36.13 47.85 35.08 Carbohydrate Replacement 10.02 29.96 37.40 15.52 9.13 20.67 31.23 22.04 17.02

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To determine if chocolate milk is as effective as other carbohydrate replacement drinks, nine male cyclists
performed an intense workout followed by a drink and a rest period. At the end of the rest period, each
cyclist performed an endurance trial in which he exercised until exhausted, and the time to exhaustion was
measured. Each cyclist completed the entire regimen on two different days. On one day, the drink provided
was chocolate milk, and on the other day the drink provided was a carbohydrate replacement drink. The
data is given in the table below. Is there evidence that the mean time to exhaustion is greater after chocolate
milk than after a carbohydrate replacement drink?

Time to Exhaustion (minutes)
Cyclist
2
3
4
7
Chocolate Milk
23.85
51.09
38.30 26.11
35.54
26.14
36.13
47.85 35.08
Carbohydrate Replacement 10.02
29.96 37.40
15.52
9.13
20.67
31.23
22.04
17.02
Transcribed Image Text:Time to Exhaustion (minutes) Cyclist 2 3 4 7 Chocolate Milk 23.85 51.09 38.30 26.11 35.54 26.14 36.13 47.85 35.08 Carbohydrate Replacement 10.02 29.96 37.40 15.52 9.13 20.67 31.23 22.04 17.02
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