Problem definition is the most difficult, yet the most important step in the marketing research process. Identify the two parts of problem definition. Then explain why problem definition is both difficult and essential. Question 18 (1 point) A consumer panel may be composed of a cross-section of people who share common characteristics. True False Question 19 (1 point) Businesses sometimes pay less attention to "why" and focus on only "what" the customers are buying. True False