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Introduction to the variance ratio F test | StatsExamples

This video introduces the variance ratio F test and describes how it works. A step-by-step description of how to perform the F-test is described. This is the test that is commonly used to determine if two population variances are equal or not. The way in which this two-tailed test can be mistaken for a one-tailed test is discussed. The video also discusses the weakness of the F-test in terms of its assumption of normality of data distributions. This is the video that answers the questions: how do I do an F-test? StatsExamples website: http://www.statsexamples.com/ ========music, image, and video credits======== All non-original images are believed to be in the public domain, available under a CC-0 or CC-by-SA license, obtained under paid license, or used under a "fair use" interpretation. If you believe that an item you own the copyright to is here, please contact us using the email available on the "About" section of the channel. Details of credits for this video can be found at: http://www.statsexamples.com/credits-... #statsexamples #Ftest #Fratio #statistics #statshelp #stats #varianceratio