Data of 120 Hotels in the Euro zone were collected and stored in the file Hotel. Variables includes are location (distance from city center in meters), wellness services \((1=\) yes, \(0=\) no), room size (size of a standard twin bed room in square meters), and room price (price of a standard twin bed room in euros).

a. Develop the most appropriate multiple regression model to predict room price.

b. What conclusions can you reach concerning the differences in room prices based on whether the hotel offers wellness services?