When testing the difference between two population proportions using large independent random samples,the __________ test statistic is used.
A)z
B)t
C)F
D)Chi-square
E)None of these

Question

Quizplus · Accepted Answer

When testing the difference between two population proportions using large independent random samples, the z-test statistic is used. This is because the distribution of sample proportions can be approximated by a normal distribution when the sample size is large enough, and the difference in sample proportions can be standardized using the standard error to obtain a z-score.

When Testing the Difference Between Two Population Proportions Using Large