Applied Statistics (Entire Course) - Statistics - 8.1.1 An Introduction to Confidence Intervals

In this video we strive to understand what a confidence interval is. We are trying to estimate a population parameter by looking at sample data. Remember that all samples are different and will give you a different confidence interval. That is called sampling error. However, based on our sample data and margin of error (which will be given in this video, not calculated) we can determine two endpoints in between which we would expect our true population parameter (mean, proportion) to fall. 0:00 Intro 0:04 What is Inferential Statistics? 1:37 What is a Confidence Interval? 3:54 Point Estimate and Margin of Error 5:37 One Example (no calculations of x-bar or E) 8:25 Up Next Power Point: https://bellevueuniversity-my.sharepoint.com/:p:/g/personal/kbrehm_bellevue_edu/EQ0EZDfXmO5LlHF8Ck7tpLsBEzDgn1sl3cqGI38TTbRPwQ?e=leVU86 This playlist follows the text, Beginning Statistics, 3rd ed, Warren, Denley, Atchley Playlist: https://www.youtube.com/playlist?list=PLl-gb0E4MII1dkfGxmdt8YA0Dgabdvdmq