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The solution to Statistics: Hypothesis Testing

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The pulse rates below were recorded over a 30-second time period, both before and after a physical fitness regimen. The data is shown below for 8 randomly selected participants. Is there sufficient evidence to conclude that a significant amount of improvement took place? Assume pulse rates are normally distributed. Test using = 0.10.
· State the null and alternate hypotheses
· Calculate the mean and standard deviation
· Determine which test statistic applies, and calculate it
· Determine the critical value(s).
· State your decision: Should the null hypothesis be rejected?
Before 33 40 34 37 55 41 52 45
After 34 44 43 39 56 47 52 48
(please show all work)

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Solution Summary

Hypothesis testing is discussed to analyze pulse rates.