For Testing the Difference Between Two Population Proportions,the Pooled Proportion

Multiple Choice

For testing the difference between two population proportions,the pooled proportion estimate is found by taking:

A) the proportion of successes from sample 1 plus the proportion of successes from sample 2.
B) the total number of successes in both samples divided by the total of both sample sizes.
C) the difference between the proportion of successes in each sample.
D) None of these choices.