Statistics Module 11 V2 - Single Population Variance, Confidence Interval, Problem 11-2Df
Channel: Peter Dalley
Date: 30/08/2021

Download the problems for free and work along with me: https://tinyurl.com/3pcjy4s 

Module 11 covers hypothesis testing for population variances.  The first video introduces both the Chi-Square and the F-Distribution as these are both new and will both be used throughout this module.  The first few problems will use the Chi-Squared distribution to perform hypothesis tests and develop confidence interval estimates for a single population variance.  The remaining problems will use the F-Distribution to perform hypothesis tests on two population variances.  Tests on population variances are brought together with tests on population means to provide a more complete set of tests on both important distribution parameters.  The F-test is also used to determine whether the assumption of unequal variances used in module 10 problems was necessary.