10.84 Alcohol and Reaction Times To test the effect of alcohol in increasing the reaction time to respond to a given stimulus, the reaction times of seven people were measured. After consuming 89 mL of 40% alcohol, the reaction time for each of the seven people was measured again. Do the fol- lowing data indicate that the mean reaction time after consuming alcohol was greater than the mean reaction time before consuming alcohol? Use a = 0.05.

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Person 1 2 3 4 5 6 7 Before 4 After 5 7 8 53 5 4F 4 3 5 4 5 34 3 6 2 25