Posted by **Anna** on Tuesday, April 17, 2012 at 8:51pm.

An SRS of size n is taken from a large population whose distribution of income is extremely right-skewed and the mean income is calculated. Which of the following statements is false?

a) When n > 30, the sampling distribution of is approximately normal.

b) When n increases, the sample standard deviation decreases (s).

c) The standard deviation of the sampling distribution of is .

d) The standard error is the standard deviation of the sample (s).

e) When n increases, the standard deviation of the sampling distribution of decreases.