Problem
How would you design an A/B test to evaluate a new mortgage application experience at Freddie Mac, including the primary metric, guardrails, and unit of randomization?
Practicing as: Data Scientist interview at Freddie MacHi, I'll play your Freddie Mac interviewer for the Data Scientist role. Candidates describe these interviews as mostly positive and moderately difficult, so expect me to be friendly and conversational. Take your time with the question above and answer like we're in the room.
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