[CVS] Marketing Outreach Experiment

Problem 🎯

An interviewer at CVS asked:

Suppose CVS wants to increase sales of an over-the-counter test kit that screens for colon cancer. To promote the kit, CVS is considering three methods of outreach:

1. Mail – A letter sent to the customer’s mailing address.
2. Email – An email sent to the customer’s email address.
3. Walk-In –...