Two Sample Design: Comparing Two Means and Two Proportions

Commonly Used Confidence Intervals

Comparing Two Population Means PT1

Comparing Two Population Means PT2

Comparing Two Population Proportions PT1

Comparing Two Population Proportions PT2

Confidence Intervals for the Mean (t-Statistic)

Confidence Intervals for the Mean (z-Statistic) PT1

Confidence Intervals for the Mean (z-Statistic) PT2

Confidence Intervals for the Population Proportion

Margin of Error and Sample Size

Tests of Significance for the Population Mean (t-Statistic)

Tests of Significance for the Population Mean (z-Statistic) PT1

Tests of Significance for the Population Mean (z-Statistic) PT2

Tests of Significance for the Population Proportion (z-Statistic) PT1

Tests of Significance for the Population Proportion (z-Statistic) PT2