produces refrigerators, stoves, and dishwashers, 4.31] A company coming year, sales are expected to be as shown below. The company want production schedule that meets the demand requirements. Management al a decided that the inventory level for each product must be at least 150 uns hs end of each quarter. There is no inventory of any product at the start of the firgt quarter. QUARTER PRODUCT Refrigerators Stoves Dishwashers 4 1200 1500 2500 2000 1000 1500 1500 1000 2000 1500 During a quarter only 19,000 hours of production time are available. A refrigerator requires 3 hours, a stove 5 hours, and a dishwasher 4 hours of production time. Refrigerators cannot be manufactured in the fourth quarter because the company plans to modify tooling for a new product line. Assume that each item left in inventory at the end of a quarter incurs a holding cost of $5. The company wants to plan its production schedule over the year in such a way that meets the quarterly demands and minimizes the total inventory cost. Formulate the problem and then solve it by the simplex method