Your question is Product KPI Metrics and Z-Tests. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Tell me about how you would use z-tests and SQL to analyze product KPIs and collaborate with others on the findings at Glean (CA). In a practical response, explain how you would define the KPI, query and validate the data, choose and run an appropriate z-test, and distinguish statistical from practical significance. Describe how you would communicate assumptions, results, limitations, and recommended next steps to product and engineering partners.