According to the Normal model, if we draw repeated random samples of the same si

Question

According to the Normal model, if we draw repeated random samples of the same size (n) from same population and measure the sample proportions, then these proportions will pile up around the true population proportion (p). The requirement for this to happen is:

A) np and nq must be respectively at least equal to 10

B) as n increases, the distribution of sample proportions becomes less Normal

C) np and nq must be respectively less than 10

D) np plus nq must be at least 10.

A) np and nq must be respectively at least equal to 10

B) as n increases, the distribution of sample proportions becomes less Normal

C) np and nq must be respectively less than 10

D) np plus nq must be at least 10.

Explanation / Answer

OPTION A: A) np and nq must be respectively at least equal to 10 [ANSWER]

This is by agreement. We need to have sufficiently large np and nq values to approximate the distribution as normal.

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