I'm an aspiring data analyst preparing for job hunting. [Reason for Taking the Course] While I had opportunities to study and practice other methodologies like funnel and retention analysis, I never had a chance to experience A/B testing even indirectly. So I chose it as my Halloween Challenge course and completed it in just one day. [What I Liked] As 거친코딩 mentioned, learning about the overall nature and cycle of A/B testing was very helpful. The P-Value part is still difficult, but I think I can gradually fill in those gaps. Thanks to the course, I now clearly understand why job requirements ask for Python or statistics knowledge and at which points they're needed. [Regarding Prerequisites] I only knew very basic knowledge like sample means and normalization, and except for a few parts, I understood it well. I think if I review the statistics part again, I'll be able to digest 100% of it. Thank you for creating such a great course! I always lacked confidence in A/B testing, but through this course, I was able to draw a foundation, which was very helpful. 👍🏼