Applied Statistics (Entire Course) - Statistics - 8.3 Estimating Population Means (𝜎 Unknown)

In our second video for calculating a confidence interval for a population mean, we discover how to calculate the critical value, the standard error, the margin of error, and confidence interval when sigma is unknown using the student's t-distribution. In addition, we discuss how to interpret the resulting interval. 0:00 Intro 0:22 The Formulas and Conditions 1:26 Example 1 - Question 2:37 Example 1 - Point Estimate and Critical Value 4:52 Example 1 - Margin of Error 6:07 Example 1 - Calculate Interval, Write Mathematically and Interpret 6:53 Example 1 in Excel 9:32 Example 2 - Try On Your Own - Given Summary Statistics 11:41 Example 3 - Given Data 14:50 Up Next Power Point: https://bellevueuniversity-my.sharepoint.com/:p:/g/personal/kbrehm_bellevue_edu/EfDgTIidb-REqgXCRkf1RhEBouC8MfK8Dvkq05dMgwS1QQ?e=8IxfcE Excel Data: https://bellevueuniversity-my.sharepoint.com/:x:/g/personal/kbrehm_bellevue_edu/ESAyYOx9m45Fq02DuY7SPYgBjRVgiVeItaNjl2mkpT2ivA?e=wwB8zA 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