Channel: StatQuest with Josh Starmer

Category: Education

Tags: josh starmernull hypothesisdata sciencehypothesis testingmachine learningstatqueststatisticsalternative hypothesis

Description: In Statistics, when we do Hypothesis Testing, we are supposed to have two hypotheses: A primary, or Null Hypothesis and an Alternative Hypothesis. This StatQuest explains why we need the Alternative Hypothesis, even though Hypothesis Testing tends to focus on the Null. NOTE: This StatQuest follows up on Hypothesis Testing and the Null Hypothesis: youtu.be/0oc49DyA3hU And if you'd like to learn about p-values, check out... p-values: What they are and how to interpret them: youtu.be/vemZtEM63GY How to Calculate p-values: youtu.be/JQc3yx0-Q9E Lastly, if you would like to learn about Statistical Tests, see: youtube.com/playlist?list=PLblh5JKOoLUIzaEkCLIUxQFjPIlapw8nU For a complete index of all the StatQuest videos, check out: statquest.org/video-index If you'd like to support StatQuest, please consider... Buying my book, The StatQuest Illustrated Guide to Machine Learning: PDF - statquest.gumroad.com/l/wvtmc Paperback - amazon.com/dp/B09ZCKR4H6 Kindle eBook - amazon.com/dp/B09ZG79HXC Patreon: patreon.com/statquest ...or... YouTube Membership: youtube.com/channel/UCtYLUTtgS3k1Fg4y5tAhLbw/join ...a cool StatQuest t-shirt or sweatshirt: shop.spreadshirt.com/statquest-with-josh-starmer ...buying one or two of my songs (or go large and get a whole album!) joshuastarmer.bandcamp.com ...or just donating to StatQuest! paypal.me/statquest Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter: twitter.com/joshuastarmer 0:00 Awesome song and introduction 1:49 The Alternative Hypothesis 3:21 Testing the Null vs Alternative for 2 groups 5:38 Testing the Null vs Alternative for 3 or more groups 8:00 Summary and next steps #StatQuest #AlternativeHypothesis