As a general rule, the sampling distribution of the sample proportions can be approximated by a normal probability distribution whenever
A)np $\ge$ 5
B)n(1 - p) $\ge$ 5
C)n $\ge$ 30
D)Both np $\ge$ 5 and n(1 - p) $\ge$ 5 are true.

Question

Quizplus · Accepted Answer

The sampling distribution of the sample proportion can be approximated by a normal distribution when both np and n(1-p) are greater than or equal to 5, ensuring sufficient sample size for both successes and failures.

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