(Multiple Choice) -

8. What must be true in order for the sampling distribution of sample means to have a mean

equal to the population mean?

(a) 5 and 5

(b) The sample size must be 30 or larger.

(c) The random samples of size n must be drawn from a population that is normally

distributed.

(d) Both (a) and (b).

(e) None of the above.