Important! Unfortunately, in this video, I mixed up the two terms "confidence level" and "statistical significance" -- mostly because I learned them mixed up back in days. :-) I was lazy to re-record the video and you'll understand the concepts regardless... which is the most important part. In the subtitles I tried to fix the issue as much as possible. Sorry folks and I hope you'll find the video useful regardless.
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An earlier online course of mine, the 'A/B Test Like a Pro' (recorded in 2021) is now available for everyone here on Youtube. My current data science courses have shifted away from this particular subject. But it was a great learning material, so I figured why not upload this for free. I upload the whole course (37 videos) one by one over the coming weeks!

Here's the full playlist: [ Ссылка ]

For those eager to delve into data science, don't miss out on my comprehensive 6-week program, 'The Junior Data Scientist's First Month.' Explore it here: [ Ссылка ]

Source of the images: author and [ Ссылка ] (thank you Unsplash!!), Optimizely blog

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Check my website: [ Ссылка ]
Get access to more data science tutorials, join the inner circle: [ Ссылка ]
Find me on Twitter: [ Ссылка ]

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