11.1 Introduction11.2 Hypothesis Testing for the Difference Between Two Population Means Using the z Statistic11.2.1 Using MS Excel for Hypothesis Testing with the z Statistic for the Difference in Means of Two Populations11.3 Hypothesis Testing for the Difference Between Two Population Means Using the t Statistic (Case of a Small Random Sample, n1, n2 < 30, when Population Standard Deviation is Unknown)11.3.1 Using MS Excel for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.3.2 Using Minitab for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.3.3 Using SPSS for Hypothesis Testing About the Difference Between Two Population Means Using the t Statistic11.4 Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.1 Using MS Excel for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.2 Using Minitab for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.4.3 Using SPSS for Statistical Inference About the Difference Between the Means of Two Related Populations (Matched Samples)11.5 Hypothesis Testing for the Difference in Two Population Proportions11.5.1 Using Minitab for Hypothesis Testing About the Difference in Two Population Proportions11.6 Hypothesis Testing About Two Population Variances (F Distribution)11.6.1 F Distribution11.6.2 Using MS Excel for Hypothesis Testing About Two Population Variances ( F Distribution)11.6.3 Using Minitab for Hypothesis Testing About Two Population Variances ( F Distribution)SummaryKey TermsDiscussion QuestionsNumerical ProblemsFormulasCase 11