A Researcher in Sports Psychology Is Interested in the Resting

Multiple Choice

A researcher in sports psychology is interested in the resting pulse rate of long-distance college runners.She does some research and finds data from the U.S.Olympics team showing their long-distance runners have a resting pulse rate of 60 beats per minute.She wants to know if the pulse rate for college runners is different from the Olympic team's m of 60.She randomly samples 20 long-distance runners,and finds
What is the estimated standard error of the mean?

A) .28
B) 5.71
C) 1.28
D) 60.03