A Random Sample of 30 Long Distance Runners Aged 20-25

A random sample of 30 long distance runners aged 20-25 was selected from a running club.The resting heart rates (in beats per minute) of the runners are shown below.Estimate the mean resting heart rate for the population of long distance runners aged 20-25.Give the 95% confidence interval. $$\begin{array} { l l l l l l l l l l } 62 & 70 & 61 & 64 & 75 & 54 & 72 & 68 & 74 & 54 \\75 & 70 & 62 & 66 & 79 & 73 & 81 & 60 & 66 & 76 \\67 & 62 & 66 & 69 & 70 & 86 & 76 & 60 & 53 & 71\end{array}$$

A) (65.1,71.1)
B) (64.1,70.1)
C) (64.0,72.2)
D) (62.9,73.0)
E) (62.9,72.2)

Correct Answer:

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