Welcome to your interview.
The question is on your right: Skewed Engagement Metric Tests. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
What statistical tests would you use to compare user engagement metrics that are highly skewed and non-normally distributed?