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Setting Up a Test for the Difference of Two Population Proportions

Isabella Lopez

Isabella Lopez

10 min read

Study Guide Overview

This study guide covers two-proportion z-tests for comparing two population proportions. It explains hypotheses (null and alternative), parameters, and the necessary conditions for inference (random, independent, normal). It details the pooled proportion calculation, the large counts condition, calculating the test statistic and p-value, and interpreting results in context. Practice questions and an answer key are included.

Question 1 of 11

What is the null hypothesis (H0H_0) typically assumed to be in a two-proportion z-test? 🤔

H0:p1p2H_0: p_1 \neq p_2

H0:p1>p2H_0: p_1 > p_2

H0:p1<p2H_0: p_1 < p_2

H0:p1=p2H_0: p_1 = p_2