For which of the following is the shape of the sampling distribution of the sample mean approximately normal?
l. A random sample of size 5 from a population that is approximately normal
II. A random sample of size 10 from a population that is strongly skewed to the right
III. A random sample of size 60 from a population that is strongly skewed to the left
A
I only
III only
C
I and II only
D
I and III only
E
I, II, and III