Normal Condition for Sample Proportions
Which of the following statements is true regarding the sampling distribution of a sample proportion, p̂?
A
It is always approximately normal if n > 30
B
It is approximately normal when both np ≥ 10 and n(1-p) ≥ 10
C
It becomes approximately normal as n increases, regardless of p
D
It is approximately normal only when p = 0.5
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