In: Economics
9. If a sample of size 64 is drawn from a population with a
standard deviation of 80,
the standard deviation of sample means would equal _______.
A. 10.000
B. 1.250
C. 0.125
D. 0.800
Ans: 10.000
Explanation:
Standard deviation of sample means = SD /
= 80 /
= 80 / 8
= 10