Video: Confidence Interval for Regression Slope
This video lesson shows how to construct a confidence interval around the slope of a regression line. Key points are illustrated step-by-step with a sample problem.
About This Video Lesson
This is a video version of Lesson 57 from Stat Trek's free online tutorial covering the complete curriculum for Advanced Placement (AP) Statistics. The written version of material covered in this video is available at https://stattrek.com/regression/slope-confidence-interval.
Prerequisite
This lesson assumes that you are familiar with simple linear regression and with confidence intervals, material we covered in previous lessons. If you are not familiar with one or both of these topics, it may be helpful to review one or both of the following lessons:
- Lesson 16: What is Linear Regression?
- Lesson 51: What is a Confidence Interval?
About Stat Trek's Video Series
A little history: About two decades ago, Stat Trek produced a free online tutorial covering the complete curriculum for AP Statistics. The tutorial, which can be found at https://stattrek.com/tutorials/ap-statistics-tutorial, was to designed to help students prepare for and pass the AP Statistics exam. Consisting of 69 easy-to-understand written lessons, the tutorial was very well-received.
Of course, there is always room for improvement. With that in mind, some students suggested supplementing the written lessons with video instruction. The Stat Trek video series is our response to that suggestion. So far, we've produced 57 video lessons, one video lesson for each of the first 57 written lessons from Stat Trek's' AP Statistics Tutorial.
The work continues. We're adding videos little by little. Eventually, we intend to have a video for each of the 69 written lessons from the tutorial.