Concept explainers
A
To calculate: The most ideal amount of imported car mufflers that should be ordered per order and the time gap between each order.
Introduction:In determining the optimal order quantity also known as the economic order quantity, a manufacturing company is able tomaximize its cost efficiency in terms of ordering cost & holding costs. It also helps in effective inventory management to minimize wastage.
b
To calculate:The re-order point based on the level of on-hand inventory
Introduction:The re-order point is the threshold of stock you identify to make the next order. In light of the same, the re-order point makes sure you have adequate time to restock before it reaches zero. This will make sure of the smooth flow of a company’s production cycle.
c
To calculate:The additional holding and set-up costs involved if the company is to buy imported car mufflers only once a year.
Introduction:The advantage of placing an order once a year will depend on the many costs relate to the stock ordered. In the said example, the two costs related the order are holding cost and the set up cost, hence the answer is given based on those two cost factors.
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Production and Operations Analysis, Seventh Edition
- The chapter presented various approaches for the control of inventory investment. Discuss three additional approaches not included that might involve supply chain managers.arrow_forwardA specialty coffeehouse sells Colombian coffee at a fairly steady rate of 280 poundsannually. The beans are purchased from a local supplier for $2.40 per pound. The coffeehouse estimates that it costs $45 in paperwork and labor to place an order for thecoffee, and holding costs are based on a 20 percent annual interest rate.b. What is the time between placement of orders?arrow_forwardLong last Appliance Store has a demand of 1300 units per month for one of its fast selling portable smoothie machine (model G), it incurs a fixed order placement, transportation and receiving cost of $3000 each time an order is delivered. Each machine cost the company $550 and the company has a holding cost of 12%. The company has two other models of the smoothie machine which are also popular with consumers. Evaluate the company’s inventory management policy if lots for each model are ordered and delivered independently by determining the following: The optimal order size The cycle inventory The number of orders per year The annual ordering and holding cost The total cost of the inventory Briefly state rationale for the approach used for (a-e)arrow_forward
- EOQ, reorder point, and safety stock Alexis Company uses 937units of a product per year on a continuous basis. The product has a fixed cost of $44 per order, and its carrying cost is $4 per unit per year. It takes 5 days to receive a shipment after an order is placed, and the firm wishes to hold 10 days' usage in inventory as a safety stock. a. Calculate the EOQ. b. Determine the average level of inventory. (Note: Use a 365-day year to calculate daily usage.) c. Determine the reorder point. d. Indicate which of the following variables change if the firm does not hold the safety stock: (1) order cost, (2) carrying cost, (3) total inventory cost, (4) reorder point, (5) economic order quantity.arrow_forwardA bedding store has a steady demand for 300 mattresses each year. The store orders mattresses from a regional wholesaler at a cost of $50 per order. The cost of each mattress depends on the order size, and the annual holding cost for mattresses is 5% of the unit cost. The store sells the mattresses for a retail price of $250. a. Use this information to fill in the following table in your answer booklet: D Annual demand Order cost Co Holding cost ratio I Selling price per unit 7" Annual revenue rD b. The wholesaler offers the following discounts depending on the order size: Discount category Order size Discount Unit cost C 1 0-49 0% $200 2 50-99 5% $190 3 100 or more 10% $180 For each discount category, find the holding cost C₁, economic order quantity Q and total annual cost TC TC = = 10 °C ₂ + 2 = C₁ + DC Co+DC. How many mattresses should the store order at a time to minimise the total annual cost? c. Fill in the following table in your answer booklet based on the economic order…arrow_forwardI need a detailed explanation on how to solve this problem: A paint shop implements an inventory policy on its stock of white paint, which costs the store $6 per can. Monthly demand for cans of white paint is normal with mean 28 and standard deviation 8. The replenishment lead time is 14 weeks. Excess demand is backordered, but costs $10 per back ordered can in labor and loss of goodwill. There is a fixed cost of $15 per order, and the holding cost is based on 30% interest rate per annum. In your computations, assume 4 weeks per month. - Write down the model name and parameters. - What are the optimal lot size and reorder points for white paint (include the formulas)? - What is the optimal safety stock (include the formula)? *** Suppose the paint shop from the above problem adopts a service level policy. - What are the optimal lot size and reorder points for white paint, such that 90% of the cycles are filled without backordering (include all formulas)? - What is the fill rate…arrow_forward
- Alina Limited is a manufacturer of widgets orders components for use in manufacturing. The estimated demand for the components during the coming year is 15,000. Order costs are $100 per order; carrying costs are $12 per component. Using the economic order quantity model What is Alina Ltd’s optimum order quantity? If the supplier guarantees a three (3) day delivery on any order that is placed, What is the re-order point?arrow_forwardGainesville Cigar stocks Cuban cigars that have variable lead times because of the difficulty in importing the product. Lead time is normally distributed with an average of 6 weeks and a standard deviation of 2 weeks. Demand is also variable and normally distributed with a mean of 200 cigars per week and a standard deviation of 25 cigars. a. For a 90% service level, what is the ROP? b. What is the ROP for a 95% service level?arrow_forwardDemand for the BMX Bike at Toby’s is 600 units per month. Toby’s incurs a fixed order placement, transportation, and receiving cost of $ 3,500 each time an order is placed. Each Bike costs $ 450 and the retailer has a holding cost of 20 percent. Evaluate the number of Bikes that the store manager should order in each replenishment lot. How many orders per period (Year) will have to be made (N) (under EOQ)?arrow_forward
- Southeastern Bell stocks a certain switch connector at its central warehouse for supplying field service offices. The yearly demand for these connectors is 15,000 units. Southeastern estimates its annual holding cost for this item to be $25 per unit. The cost to place and process an order from the supplier is $75. The company operates 300 days per year, and the lead time to receive an order from the supplier is 2 working days. What is the reorder point ?arrow_forwardKabel Market store sells electric cable. The demand for cable is normally distributed. The inventory related information at Kabel Market is as follows: Average Annual Demand = 16,900 meters Standard deviation of weekly demand = 28 meters Cable selling price = AMD 640.00 per meter Ordering cost = AMD 1,250.00 per order Lead time = 5 weeks Annual inventory-holding cost estimate = 2.5% of the cable selling price Required service level = 95% Kabel Market works 52 weeks a year. Note: The approximate z values are: for 0.9 ≈ 1.28, for 0.92 ≈ 1.405, for 0.95 ≈ 1.645, for 0.98 ≈ 2.05. Suppose the bar management practices the fixed-QUANTITY ordering system with the use of the economic order quantity. Answer the following questions: (i) How many meters of cable they order from the supplier each time? (ii) When do they place an order? (iii) What is the safety stock?arrow_forwardThe campus bookstore sells 4,000 sets of graduation regalia each year. Placing an order from their supplier costs $25 regardless of order quantity, so they usually place a large order (a half year's supply) at a time. It costs $5 per year to hold a cap and gown in inventory, primarily insurance costs for the highly flammable material. What is their optimal order quantity, total cost using the optimal order quantity, and What is the difference in the total cost if they order at their optimal order quantity compared to their current policy?arrow_forward
- Purchasing and Supply Chain ManagementOperations ManagementISBN:9781285869681Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. PattersonPublisher:Cengage Learning