Easy# Testing Hypothesis: Conditions

APSTAT-HTYN4A

Which of the following is/are conditions necessary for a one-proportion $Z$-test?

I.The data must come from a simple random sample.

II.$np$ and $n(1-p)$ must both be more than $10$, where $n$ is the sample size and $P$ is the probability of success.

III.The sample size must be more than $30$.