Concept explainers
a
To determine:
Economic quantity and time duration of salamis to be ordered. .
Introduction:
Economic order quantity in the optimal inventory kept by any firm which is ideal and do not incur any additional holding cost and order cost.
b
To determine:
Number of salamis to be maintained before re-ordering.
Introduction:
Lead time is the time between when order is placed and its production is completed.
c
To determine:
Annual profit of salamis when sold at $3.
Introduction:
Profit is the net difference between total revenue and total cost at a particular point of time.
d
To determine:
Profitability of selling salamis when shelf life is 4 weeks
Introduction:
Profit is the net difference between total revenue and total cost at a particular point of time.
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EBK PRODUCTION AND OPERATIONS ANALYSIS
- David’s Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimatesthat the demand for the salamis is pretty steady at 175 per month. The salamis costGold $1.85 each. The fixed cost of calling his brother in New York and having thesalamis flown in is $200. It takes three weeks to receive an order. Gold’s accountant, Irving Wu, recommends an annual cost of capital of 22 percent, a cost of shelfspace of 3 percent of the value of the item, and a cost of 2 percent of the value fortaxes and insurance.b. How many salamis should Gold have on hand when he phones his brother tosend another shipment?arrow_forwardDavid’s Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimatesthat the demand for the salamis is pretty steady at 175 per month. The salamis costGold $1.85 each. The fixed cost of calling his brother in New York and having thesalamis flown in is $200. It takes three weeks to receive an order. Gold’s accountant, Irving Wu, recommends an annual cost of capital of 22 percent, a cost of shelfspace of 3 percent of the value of the item, and a cost of 2 percent of the value fortaxes and insurance.c. Suppose that the salamis sell for $3 each. Are these salamis a profitable itemfor Gold? If so, what annual profit can he expect to realize from this item?(Assume that he operates the system optimally.)arrow_forwardDavid’s Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimates that the demand for the salamis is pretty steady at 175 per month. The salamis cost Gold $1.85 each. The fixed cost of calling his brother in New York and having the salamis flown in is $200. It takes three weeks to receive an order. Gold’s accountant, Irving Wu, recommends an annual cost of capital of 22 percent, a cost of shelf space of 3 percent of the value of the item, and a cost of 2 percent of the value for taxes and insurance.a. How many salamis should Gold have flown in and how often should he order them?b. How many salamis should Gold have on hand when he phones his brother to send another shipment?c. Suppose that the salamis sell for $3 each. Are these salamis a profitable item for Gold? If so, what annual profit can he expect to realize from this item? (Assume that he operates the system optimally.)d. If the salamis…arrow_forward
- Little Caesars Pizza orders all of its pepperoni, olives, anchovies, and mozzarella cheese to be shipped directly from Italy. An American distributor stops by every four weeks to take orders. Because the orders are shipped directly from Italy, they take three weeks to arrive. Little Caesars Pizza uses an average of 150 pounds of pepperoni each week, with a standard deviation of 30 pounds. Little Caesars prides itself on offering only the best quality ingredients and a high level of service, so it wants to ensure a 98 percent probability of not stocking out on pepperoni. Assume that the sales representative just walked in the door and there are currently 500 pounds of pepperoni in the walk-in cooler. How many pounds of pepperoni would you order? What is the standard deviation of demand during the review period and lead-time? How many pounds of pepperoni would you order?arrow_forwardDavid’s Delicatessen flies in Hebrew National salamis regularly to satisfy a growing demand for the salamis in Silicon Valley. The owner, David Gold, estimatesthat the demand for the salamis is pretty steady at 175 per month. The salamis costGold $1.85 each. The fixed cost of calling his brother in New York and having thesalamis flown in is $200. It takes three weeks to receive an order. Gold’s accountant, Irving Wu, recommends an annual cost of capital of 22 percent, a cost of shelfspace of 3 percent of the value of the item, and a cost of 2 percent of the value fortaxes and insurance.a. How many salamis should Gold have flown in and how often should he orderthem?arrow_forwardYou are in charge of inventory control of a highly successful product retailed by your firm. Weekly demand for this item varies, with an average of 200 units and a standard deviation of 16 units. It is purchased from a wholesaler at a cost of $12.50 per unit. You are using a continuous review system to control this inventory. The supply lead time is 4 weeks. Placingan order costs $50, and the inventory carrying rate per year is 20 percent of the item’s cost. Your firm operates 5 days per week, 50 weeks per year.a. What is the optimal ordering quantity for this item?b. How many units of the item should be maintained as safety stock for 99 percent protection against stockouts during an order cycle?c. If supply lead time can be reduced to 2 weeks, what is the percent reduction in the number of units maintained as safety stock for the same 99 percent stockout protection?d. If through appropriate sales promotions, the demand variability is reduced so that the standard deviation of weekly…arrow_forward
- Charlie's Pizza orders all of its pepperoni, olives, anchovies, and mozzarella cheese to be shipped directly from Italy. An American distributor stops by every six weeks to take orders. Because the orders are shipped directly from Italy, they take five weeks to arrive. Charlie's Pizza uses an average of 160 pounds of pepperoni each week, with a standard deviation of 26 pounds. Charlie's prides itself on offering only the best-quality ingredients and a high level of service, so it wants to ensure a 99 percent probability of not stocking out on pepperoni. Assume that the sales representative just walked in the door and there are currently 500 pounds of pepperoni in the walk-in cooler. How many pounds of pepperoni would you order? (Use Excel's NORMSINV() function to find the correct critical value for the given a-level. Do not round intermediate calculations. Round "z" value to 2 decimal places and final answer to the nearest whole number.) Amount of pepperoni's ordered poundsarrow_forwardCharlie’s Pizza orders all of its pepperoni, olives, anchovies, and mozzarella cheese to be shipped directly from Italy. An American distributor stops every four weeks to take orders. Because the orders are shipped directly from Italy, they take three weeks to arrive. Charlie’s Pizza uses an average of 150 pounds of pepperoni each week, with a standard deviation of 30 pounds. Charlie’s prides itself on offering only the best quality ingredientsand a high level of service, so it wants to ensure a 98 percent probability of not stocking out on pepperoni. Assume that the sales representative just walked in the door and there are currently 500 pounds of pepperoni in the walk-in cooler. How many pounds of pepperoni would you order? (Answer in Appendix D)arrow_forwardThe materials manager for a billiard ball maker must periodically place orders for resin, one of the raw materials used in producing billiard balls. She knows that manufacturing uses resin at a rate of 50 kilograms each day, and that it costs $.04 per day to carry a kilogram of resin in inventory. She also knows that the order costs for resin are $100 per order, and that the lead time for delivery is four days. If the order size was 1,000 kilograms of resin, what would be the average inventory level?arrow_forward
- Charlie's Pizza orders all of its pepperoni, olives, anchovies, and mozzarella cheese to be shipped directly from Italy. An American distributor stops by every six weeks to take orders. Because the orders are shipped directly from Italy, they take five weeks to arrive.Charlie's Pizza uses an average of 200 pounds of pepperoni each week, with a standard deviation of 32 pounds. Charlie's prides itself on offering only the best-quality ingredients and a high level of service, so it wants to ensure a 95 percent probability of not stocking out on pepperoni.Assume that the sales representative just walked in the door and there are currently 420 pounds of pepperoni in the walk-in cooler. How many pounds of pepperoni would you order? (Use Excel's NORM.S.INV() function to find the z value. Do not round intermediate calculations. Round z value to 2 decimal places and final answer to the nearest whole number.)arrow_forwardDuring the last 5 weeks, demands for a certain SKU at a retailer were 7 units (5 weeks ago), 4 units, 4 units, 4 units, and 5 units (last week). The retailer uses a period review model with order-up-to level 71 units, a review period of 2 weeks, and the lead time is 11 weeks. It is time to order. How much should the retailer order?arrow_forwardA restaurant uses 5,000 quart bottles of ketchup each year. The ketchup costs $3.00 per bottle and is served only in whole bottles because its taste quickly deteriorates. The restaurant figures that it costs $10.00 each time an order is placed, and holding costs are 20 percent of the purchase price. It takes 3 weeks for an order to arrive. The restaurant operates 50 weeks per year. The restaurant would like to use an inventory system that minimizes inventory cost. The restaurant has figured that the most economical order size or EOQ is approx. 409 (rounding up the decimals). Suppose that things have become uncertain and that customer demand is no more constant. Customer demand is now normally distributed with mean being the same as given in the problem description and standard deviation = 30 units per week. The supply source is still very reliable and as a result the lead time is constant. Find out the safety stock needed to achieve 95% customer service level. O 55 65 075 85 None of…arrow_forward
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