Statistics 101: Two Populations, z-test with Hypothesis

Statistics 101: Two Populations, z-test with Hypothesis In this video, we begin the exploration of multiple populations by finding a confidence interval for the mean difference between two populations. For this first case, we know or are given the two populations' standard deviations. We learn how to find the standard error, margin or error, and confidence interval for the difference between two populations. Illustrations and examples are provided. Enjoy! My playlist table of contents, Video Companion Guide PDF documents, and file downloads can be found on my website: https://www.bcfoltz.com