(1) Independent-samples t-tests are often used in marketing for A/B testing. Why is A/B testing so useful for marketing? Give some examples of A/B testing for marketing purposes and explain how an A/B test would help a marketer reach consumers more effectively.

(2) Think of a product or service that can be "broken down" into attributes.What is the product/service, and what do you think are the most important attributes to consumers?Which "levels" of these attributes would you want to test in a conjoint analysis?