If a population proportion is believed to be 0.6, how many items must be sampled to ensure that the sampling^distribution of p will be approximately normal? Assume that the size of the population is N = 10,000.
A) 42
B) 30
C) 13
D) 60

Question

Quizplus · Accepted Answer

To ensure the sampling distribution of the sample proportion is approximately normal, the sample size n must satisfy np ≥ 5 and n(1-p) ≥ 5. For p = 0.6, n must be at least 42 to satisfy both conditions.

If a Population Proportion Is Believed to Be 0