A z-test for testing hypotheses about a population proportion is to be conducted. One condition for this z-test to be valid is that the population of all responses has a Normal distribution.

Question

Quizplus · Accepted Answer

The z-test for population proportions relies on the sampling distribution of the sample proportion being approximately normal, which is generally satisfied by the success-failure condition (np ≥ 10 and n(1-p) ≥ 10) rather than the population of all responses being normally distributed.

A Z-Test for Testing Hypotheses About a Population Proportion Is