Question 7 (12 points): You are launching an online retail business and you need to choose from 7 potential sites, labeled A-G, to build warehouses. You wish to provide 2-day shipping to customers in all 9 districts with the minimum number of warehouses. The shipping time (in days) from the potential warehouse sites to each district is given in the tablebelow. What is the minimum number of warehouses needed? At what locations? How is the answer different if you want 1 day shipping to all districts? 2-day shipping (8 points) Number of warehouses needed Sites Shipping time (in days) from site to district District\Site A B C D E F G 1 5 3 4 3 9 8 0 2 3 6 5 4 0 8 3 3 4 3 6 8 3 10 2 4 6 0 2 7 2 3 5 5 2 8 2 5 6 0 8 6 2 6 4 0 3 7 5 7 0 12 5 5 7 5 2 8 10 9 0 2 5 3 7 9 2 4 5 7 4 3 5 1-day shipping (4 points) Number of warehouses needed Sites