solved I’m working on a writing multi-part question and need a

I’m working on a writing multi-part question and need a reference to help me learn.

1.The American Academy of Pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. Provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.
2. Assume that a multispecialty medical group has decided to segment the market in the community by income level. The group has decided to target a small niche of middle-aged, white collar professionals who are married, with both spouses working outside the home. How might this medical group tailor its marketing mix to appeal to this segment?