1-Consider the following linear programming problem: Maximize 12X + 10Y Subject to: 4X + 3Y =480 2X + 3Y =360 all variables =0 Which of the following points (X,Y) is feasible? (10,120) None of the above (120,10) (30,100)
2- R. C. Barker makes purchasing decisions for his company. One product that he buys costs $50 per unit when the order quantity is less than 500. When the quantity ordered is 500 or more, the price per unit drops to $48. The ordering cost is $30 per order and the annual demand is 7,500 units. The holding cost is 10 percent of the purchase cost. If R. C. orders 500 units each time he places an order, what would the total annual holding cost be? $1,250 None of the above $450 $2,400 $1,200
3- The annual demand for a product is 1,000 units. The company orders 200 units each time an order is placed. The lead-time is 6 days, and the company has determined that 20 units should be held as a safety stock. There are 250 working days per year. What is the reorder point? Sales for boxes of Girl Scout cookies over a4-month period were forecasted as follows: 100, 120, 115, and 126. The actual results over the 4-month period were as follows: 110, 114, 119, 115. What was the MAD of the 4-month forecast? 7 5 0 108 None of the above
4- Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed). What is the probability that the average price per square foot for a home is greater than $90? 0.159 0 0.977 0.023
5- Data for a particular subdivision near downtown Houston indicate that the average price per square foot for a home is $100 with a standard deviation of $5 (normally distributed). What is the probability that the average price per square foot for a home is greater than $110? 0.977 0.841 None of the above 0.023 0 None of the above.