Hypothesis Testing Home Tags Hypothesis Testing Refine Hypothesis Testing Videos Tests of Significance for the Population Proportion (z-Statistic) PT1 Tests of Significance for the Population Proportion (z-Statistic) PT2 Tests of Significance for the Population Mean (z-Statistic) PT2 Tests of Significance for the Population Mean (t-Statistic) Tests of Significance for the Population Mean (z-Statistic) PT1 Comparing Two Population Proportions PT2 Comparing Two Population Means PT1 Comparing Two Population Means PT2 Comparing Two Population Proportions PT1