As a Rule of Thumb, the Sampling Distribution of the Sample

Multiple Choice

As a rule of thumb, the sampling distribution of the sample proportions can be approximated by a normal probability distribution whenever

A) np ≥ 5
B) n1 - p) ≥ 5 and n ≥ 30
C) n ≥ 30 and 1 - p) = 0.5
D) None of these alternatives is correct.