L.L. Bean. L.L. Bean is a large U.S. retailer that depends heavily on its catalog sales. It collects data internally and tracks the number of catalogs mailed out, the number of square inches in each catalog, and the sales ($ thousands)

in the 4 weeks following each mailing. The company is interested in learning more about the relationship

(if any) among the timing and space of their catalogs and their sales.