Welcome to your interview.
The question is on your right: A/B Test for Newsletter CTR. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
How would you design an A/B test to optimize the click-through rate of a university-wide newsletter at The University Of Arizona?