Your question is Validate Statistical Model Reliability. 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've built a model and the team wants confidence that its results will hold up outside the development environment. You need a clear way to judge whether the model is trustworthy before people use it to make decisions.
How do you ensure the validity of your statistical models?