Question 4 A furniture manufacturer sells a line of chairs with the same general design. The chairs are made with leather sheets, and the purchase plan for the leather sheets is to be determined for the next eight weeks. The chairs are offered in three styles, each with minor modifications in the cushion design. Marketing forecasts for the three styles are given as follows: Weekly Demand Forecast (Units) Chair 2 3 5 6 7 8 Style A 200 170 150 200 150 90 200 150 Style B 50 120 70 100 90 100 90 60 Style C 120 110 100 130 80 50 80 40 It takes one week to produce the chairs, with a production run of 250 for style A and 100 each for styles B and C. Currently, there are 150 chairs of each type on hand. Current production plans will make available 50 style A chairs in week 1, with none currently on hand. No production is currently scheduled for style B and C chairs. All other parts for the chairs are readily available and cause no delay in producing the finished chairs. For the leather sheets (3 sheets = 1 chair), there are 1.500 sheets on hand and 500 more are to be received in week 2. It takes, on the average, two weeks to receive a leather sheet order, once that order has been placed. Minimum orders are 1,000 sheets; a safety stock of 200 sheets is to be on hand at all times. Develop a schedule for timing the release of leather sheet purchase orders over the next eight weeks. (25 marks) Show all your workings clearly