Question: 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 56 38 56 33 38 51 57 55
After 56 38 64 37 43 55 63 61