Statistics
posted by Carol on .
2. A researcher hypothesized that the pulse rates of longdistance athletes differ from those of other athletes. He believed that the runnersâ€™ pulses would be slower. He obtained a random sample of 10 longdistance runners. He measured their resting pulses. Their pulses were 45, 45, 64, 50, 58, 49, 47, 55, 50, 52 beats per minute. The average resting pulse of athletes in the general population is normally distributed with a pulse rate of 60 beats per minute. What statistical test should be used to analyze the data

How about a onesample ttest?
Usually you use ztests when sample sizes are large (n is greater than
or equal to 30) whether or not you know the population standard deviation.
If you do not know the population standard deviation and have a small
sample (n < 30), then you can use ttests.