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.

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)