iv. When transforming Method of Enquiry into dummy variables, consider Other as the baseline category; meaning the created dummy variables for Method of Enquiry should only include RACV Store (Yes and No) and Website (Yes and No) When transforming Sales Person into dummy variables, consider Daiyu as the baseline category; meaning the created dummy variables for Sales Person should only include Anand (Yes and No), and Clayton (Yes and No). When transforming Gender into dummy variables, consider Prefer Not to Say as the baseline category; meaning the created dummy variables for Gender should only include Female (Yes and No), and Male (Yes and No). When transforming Location into dummy variables, consider Otway as the baseline category; meaning the created dummy variables for Location should only include Geelong (Yes and No), and Surf Coast (Yes and No). (a) Transform categorical variables into suitable dummy variables (i.e., Method of Enquiry, Sales Person, Gender, and Location).