Your question is Retention Test for a New Offer. 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 wireless carrier offer flow and want to test a new offer against the current one. Early signals suggest it may improve retention, but there is concern it could reduce revenue from lower plan value or discounts.
How would you set up the experiment to determine whether the new offer improves retention without hurting revenue? Walk through how you would define success, choose the randomization unit, and avoid common experimentation pitfalls.