Q1.What is the primary purpose of randomly assigning users to control and treatment groups in an A/B test?
Q2.What is a Sample Ratio Mismatch (SRM) in an A/B test, and why is it a red flag?
Q3.What is a novelty effect in the context of A/B testing?
Q4.Why is it risky to check an A/B test's results repeatedly and stop as soon as it becomes significant ("peeking")?