The best part is you add coding with the theory and explained quite well!

Very good explanation thank you! That being said, I might have picked up a tiny mistake in the code. Indeed, should it not be "observed_z_score = blabla / sample_sd" instead of "observed_z_score = blabla / sigma" since the sigma variable is part of what we are not supposed to know (population standard deviation)? If I am right, this must have completely thrown off the z score calculation.

The presentation is super helpful and clear! Thanks Emma! Could you please share the notes?

Thanks for the video Emma, it's really handy! Just a suggestion - Might be useful to also share an example of a one-tailed test (for example when we want to test if the population mean is greater than or lesser than a target value).

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我来组成一楼！

Many of you have asked me to share my presentation notes, and now… I have them for you! Download all the PDFs of my Notion pages at www.emmading.com/get-all-my-free-resources. Enjoy!