Your question is Complex Analysis Project Walkthrough. 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).
You are discussing past analytical work for a research-focused role. The interviewer wants to hear about a project where you handled messy data, chose an appropriate statistical approach, and translated results into a decision.
Describe a complex data analysis project you completed.