This video is part 2 of hypothesis testing problems in data science interviews.

️ Part 1 of hypothesis testing problems in data science interviews:
https://www.youtube.com/watch?v=IY7y-t30UJc

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Contents of this video:
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00:00 Intro
00:39 Two-sample test of proportions
4:40 Statistical significance
5:11 Practical significance
07:11 Two-sample test of means
10:19 Welch's t-test