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More Confidence Intervals and an Introduction to Hypothesis Testing In this video: 🔹 Using Sample Variances for a Confidence Interval for a Difference of Means (Large Samples) 0:30 🔹 Using Sample Variances for a Confidence Interval for a Difference of Means (At Least One Small Sample) 12:34 🔹 Equal Variances and Pooled Variance 14:45 🔹 Non-Equal Variances and Welch's Approximation (The Behrens-Fisher Problem) 33:12 🔹 Introduction to Hypothesis Testing 36:50 🔹 Null and Alternative Hypotheses 44:03 🔹 Simple Versus Composite Hypotheses 51:40 🔹 Type I and II Errors 55:54 New videos release every Tuesday and Thursday! ---------------------------------------------------------------------------------------------------------------------------------------------- Thanks for watching! Consider checking out my MathStat textbook! http://www.amazon.com/Simple-Infinite-Joy-Mathematical-Statistics/dp/B0BD1YPQRN Also, if you are interested in data science, check out my courses on Coursera! https://www.coursera.org/specializations/statistical-inference-for-data-science-applications
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