One of the most basic concepts in statistics is hypothesis testing and something called The Null Hypothesis. This video breaks these concepts down into easy to understand pieces so that you can understand their motivation and their uses. By the time you're done with this video, Hypothesis Testing and the Null Hypothesis will be Clearly Explained!!! NOTE: If you'd like to learn about The Alternative Hypothesis, check out... https://www.youtube.com/watch?v=5koKb5B_YWo And if you'd like to learn about p-values, check out... p-values: What they are and how to interpret them: https://www.youtube.com/watch?v=vemZtEM63GY How to Calculate p-values: https://www.youtube.com/watch?v=JQc3yx0-Q9E For a complete index of all the StatQuest videos, check out: https://statquest.org/video-index/ If you'd like to support StatQuest, please consider... Buying my book, The StatQuest Illustrated Guide to Machine Learning: PDF - https://statquest.gumroad.com/l/wvtmc Paperback - https://www.amazon.com/dp/B09ZCKR4H6 Kindle eBook - https://www.amazon.com/dp/B09ZG79HXC Patreon: https://www.patreon.com/statquest ...or... YouTube Membership: null ...a cool StatQuest t-shirt or sweatshirt: null ...buying one or two of my songs (or go large and get a whole album!) https://joshuastarmer.bandcamp.com/ ...or just donating to StatQuest! https://www.paypal.me/statquest Lastly, if you want to keep up with me as I research and create new StatQuests, follow me on twitter: https://twitter.com/joshuastarmer 0:00 Awesome song and introduction 0:22 Background 2:32 First hypothesis 4:09 Rejecting a hypothesis 4:40 Second hypothesis 7:14 Failing to reject a hypothesis 8:21 Rejecting vs Failing to Reject 9:01 Motivation for the Null Hypothesis 9:51 The Null Hypothesis 13:44 The next steps Correction: 7:49 I meant to say Drug C instead of Drug A. #StatQuest #NullHypothesis