In testing a proportion,normality of p can be assumed if nπ0 ≥ 10 and n(1 − π0)≥ 10.

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Quizplus · Accepted Answer

This is true according to the Central Limit Theorem, which states that the sampling distribution of a proportion becomes approximately normal as the sample size (n) increases, as long as np and n(1-p) are both greater than or equal to 10. Therefore, if these conditions are met, normality of p can be assumed for the purpose of testing a proportion.

In Testing a Proportion,normality of P Can Be Assumed If