Question

The following numbers are the differences in pulse rate (beats per minute) before and after running for 12 randomly selected people.
24, 12, 14, 12, 16, 10, 0, 4, 13, 42, 4, and 16
Positive numbers mean the pulse rate went up. Test the hypothesis that the mean difference in pulse rate was more than 0, using a significance level of 0.05. Assume the population distribution is Normal.


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  • CreatedJuly 16, 2015
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