Your question is Analyze Pre-Post Campaign Behavior Change. 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 customer insights team that launched a campaign and then noticed a shift in customer behavior afterward. Stakeholders want to know whether the campaign caused the change or whether it was just a normal pre-existing trend.
How would you analyze changes in customer behavior before and after the campaign launch, and how would you separate a real campaign effect from time-based noise or other confounders?