These video recordings are not meant to stand in for class attendance. They are provided for your review and convenience. Our conversations in class will be dynamic and also touch heavily on new trends such as artificial intelligence.
https://komododecks.com/embed/recordings/AfeeSz7GxCeSQteIE9Hk?onlyRecording=1
00:00 Introduction and Course Context 05:00 Sample vs Population and Point Estimates 10:00 Sampling Distribution and Central Limit Theorem 15:00 Sample Size and Sampling Variability 20:00 Interval Estimates and Confidence Intervals 25:00 Population Standard Deviation Known vs Unknown 30:00 Standard Deviation, Variance, and Empirical Rule 35:00 Student's T Distribution and Confidence Interval Construction 40:00 Example: Tire Thread Life Confidence Interval 45:00 Using Excel for Confidence Interval Calculations and Discussion on Mean vs Median and Statistical Assumptions
https://komododecks.com/embed/recordings/P4vwxhjeAuyG1bu75iuQ?onlyRecording=1
00:00 Introduction and Recap of Sampling and Central Limit Theorem 10:00 Confidence Intervals and Margin of Error Explained 20:00 Impact of Sample Size and Confidence Level on Margin of Error 30:00 Difference Between Measures and Proportions 40:00 Using t-Distribution and z-Distribution for Confidence Intervals 50:00 Hypothesis Testing Fundamentals and Examples 01:00:00 One-Sample Hypothesis Testing and Interpretation 01:10:00 Preview of Two-Sample Hypothesis Testing and Conclusion
https://komododecks.com/recordings/BZXiSKKhhKsHXIZLpKsI
00:00 Introduction to Hypothesis Testing and Confidence Intervals 15:00 Formulating Null and Alternative Hypotheses 30:00 Types of Hypothesis Tests: One-tail and Two-tail 45:00 Decision Rules and Errors in Hypothesis Testing 01:00:00 Example: Myrtle Beach Airport Wait Time Analysis 01:10:00 Using Excel Templates for Hypothesis Testing and Summary
https://komododecks.com/recordings/FIW6CzLnZRv90sgDwaEY
00:00 Introduction to Two Sample Tests and Statistical Foundations 06:00 Independent vs Dependent Samples in Hypothesis Testing 12:00 Concept of Pooled vs Unpooled Variance 16:00 F-Test for Comparing Variances 23:00 Formulas for Pooled and Unpooled Variance Test Statistics 30:00 Using Microsoft Excel for Two Sample Hypothesis Testing 45:00 Case Study: Comparing Travel Times on Two Routes 58:00 Variance Comparison and Interpretation of Results 01:02:00 Re-running Analysis with Correct Variance Assumptions and Conclusion
https://komododecks.com/recordings/VkuIpHsCCl1ZrEw2zSgj
00:00 Introduction and Recap of Estimation and One-Sample Tests 01:30 Two-Sample Tests and Hypothesis Setup 08:00 Clarifying Hypothesis Direction and Data Collection 15:00 Independent vs Dependent Two-Sample Tests 22:00 Variance Comparison and F-Test 30:00 Dependent Sample Tests and Difference Scores 40:00 Using Excel for Paired Sample Tests and Interpretation 46:00 Comparing Proportions and Hypothesis Testing 52:00 Introduction to ANOVA and Multiple Group Comparisons 58:00 ANOVA Global Test and Avoiding Multiple Comparison Errors