Applied Statistics (Entire Course) - Statistics - 9.2.2 Comparing Two Population Means (𝜎 Unknown, Equal Variances)

We continue our study of the difference of population means where the population standard deviation is unknown. This time we focus on the calculations necessary when the variances are assumed to be equal and therefore will be pooled. 0:00 Intro 0:14 Conditions 0:52 Formulas 2:24 Example 1 - Problem Statement 4:30 Example 1 - Find Point Estimate and Critical Value 5:39 Example 1 - Find Margin of Error and Confidence Interval 7:10 Example 1 - Interpret the Interval 8:03 Example 1 - Excel 11:22 Example 2 - Excel Given Data 13:32 Up Next Power Point: https://bellevueuniversity-my.sharepoint.com/:p:/g/personal/kbrehm_bellevue_edu/EeD3dLA9oJpAsVT5UbMj4YYB9mhJXc5B4LKsHwPfSaABVQ?e=FSW5q9 Excel Data: https://bellevueuniversity-my.sharepoint.com/:x:/g/personal/kbrehm_bellevue_edu/Edh3jE-uRfNJteNBZBGbcxgBjHADeMw2jQIRS_LVZaswzA?e=9c1twy Confidence Interval Decision Tree: https://bellevueuniversity-my.sharepoint.com/:b:/g/personal/kbrehm_bellevue_edu/EbcsvXnQcsxAjGEmqReLNS4B-bxNVp6EzXRPrsFLxbaUSQ?e=ehmDq1 This playlist follows the text, Beginning Statistics, 3rd ed, Warren, Denley, Atchley Playlist: https://www.youtube.com/playlist?list=PLl-gb0E4MII1dkfGxmdt8YA0Dgabdvdmq