11. ScreenCast: Traditional Confidence Interval Methods
Traditional vs. Bootstrapping Confidence Intervals
In this video you saw a comparison of the traditional method for calculating a difference of means using a python built in to the bootstrapping method you have been using throughout this lesson.
With large sample sizes, these end up looking very similar. With smaller sample sizes, using a traditional methods likely has assumptions that are not true of your interval. Small sample sizes are not ideal for bootstrapping methods though either, as they can lead to misleading results simply due to not accurately representing your entire population well.