Your question is Causal Lift in Growth Experiment. 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 work on a growth surface in a B2B SaaS product and launch a new onboarding prompt intended to improve activation. Early results look better in treatment, but you need to know whether the initiative actually caused the improvement rather than reflecting noise, mix shifts, or measurement issues.
How would you determine whether the growth initiative truly caused an improvement? Walk through how you would design the experiment, define success, and decide whether the observed lift is real enough to ship.