4. Coordinating advertising and production The Hawley Lighting Company manufactures four families of household ghting at its factory. The product families are table lamps, floor lamps, ceiling fixtures, and pendant lamps. The table below shows the average material costs for each of the products. Product Table Floor Ceiling Pendant Material cost $66 85 50 80 Each product is made in one of two production processes. Table lamps and floor lamps go through the process in Department 1, while ceiling fixtures and pendants go through the process in Deparnnent 2. Variable production costs and capacities [measured in units of product) are shown in the table below. Note that there are regular and overtime possibilities for each department. Regular time Overtime Capacity Capacity Process Unit cost in units Unit cost in units Department 1 $16 100,000 $18 25,000 Department 2 12 90,000 15 24,000 Average selling prices for the four products are known, and estimates have been made of the market demand for each product at these prices. These figures are shown in the following table. Product Table Floor Ceiling Pendant Selling price $120 150 100 160 Potential sales 00,000 20,000 100,000 35,000