# Your company assembles five different models of a motor scooter that

MGT655 Week 8 chapter 16 and 20 tutorial in excel

Objective Question 12; Chapter 16 – MGT-655

12. Your company assembles five different models of a motor scooter that is sold in specialty stores in the United States. The company uses the same engine for all five models. You have been given the assignment of choosing a supplier for these engines for the coming year. Due to the size of your warehouse and other administrative restrictions, you must order the engines in lot sizes of 1,000 each. Because of the unique characteristics of the engine, special tooling is needed during the manufacturing process for which you agree to reimburse the supplier. Your assistant has obtained quotes from two reliable engine suppliers and you need to decide which to use. The following data have been collected:

Requirements (annual forecast)

Weight per engine

Order processing cost

Inventory carry cost

12,000 units

22 pounds

\$125 per order

20 percent of the average value of inventory per year

Note: Assume that half of lot size is in inventory on average (1,000/2 5 500 units).

Two qualified suppliers have submitted the following quotations:

Order Quantity

Supplier 1

Unit Price

Supplier 2

Unit Price

1 to 1,499 units/order

1,500 to 2,999 units/order

3,0001 units/order

Tooling costs

Distance

\$510.00

500.00

490.00

\$22,000

125 mi les

\$505.00

\$505.00

488.00

\$20,000

100 mi les

\$0.80 per ton-mile

\$1.20 per ton-mile

Note: Per ton-mile 5 2,000 lbs. per mile.

a. Perform a total cost of ownership analysis and select a supplier.

b. Would it make economic sense to order in truckload quantities? Would your supplier selection change if you ordered truckload quantities?

Objective Question 17

U.S. Airfilter has hired you as a supply chain consultant. The company makes air fi lters for residential heating and air-conditioning systems. These filters are made in a single plant located in Louisville, Kentucky, in the United States. They are distributed to retailers through wholesale centers in 100 locations in the United States, Canada, and Europe. You have collected the following data relating to the value of inventory in the U.S. Airfi lter

supply chain:

Quarter 1

(January

through March)

Quarter 2

(April

through June)

Quarter 3

(July through

September)

Quarter 4

(October through

December)

Sales (total quarter):

United States

Europe

300

75

30

350

60

33

405

75

20

375

70

15

Cost of goods

sold (total quarter)

280 295 340 350

Raw materials at

the Louisville

plant (end-of-quarter)

50 40 55 60

Work-in-process

and fi nished

goods at the

Louisville plant

(end-of-quarter)

100 105 120 150

Distribution center

inventory (end-of-quarter):

United States

Europe

25

10

5

27

11

4

23

15

5

30

16

5

All amounts in millions of U.S. dollars.

a. What is the average inventory turnover for the fi rm?

b. If you were given the assignment to increase inventory turnover, what would you focus on? Why?

c. The company reported that it used \$500M worth of raw material during the year. On average, how many weeks of supply of raw material are on hand at the factory?

Objective Questions for chapter 20, Operations and Supply Change Management – MGT-655

17. Jill’s Job Shop buys two parts (Tegdiws and Widgets) for use in its production system from two different suppliers. The parts are needed throughout the entire 52-week year. Tegdiws are used at a relatively constant rate and are ordered whenever the remaining quantity drops to the reorder level. Widgets are ordered from a supplier who stops by every three weeks. Data for both products are as follows:

Item Tegdiw Widget

Annual demand

Holding cost (% of item cost)

Setup or order cost

Safety stock

Item cost

10,000

20%

\$150.00

4 weeks

55 units

\$10.00

5,000

20%

\$25.00

1 week

5 units

\$2.00

a. What is the inventory control system for Tegdiws? That is, what is the reorder quantity and what is the reorder point?

b. What is the inventory control system for Widgets?

21. Item X is a standard item stocked in a company’s inventory of component parts. Each year the firm, on a random basis, uses about 2,000 of item X, which costs \$25 each. Storage costs, which include insurance and cost of capital, amount to \$5 per unit of average inventory. Every time an order is placed for more of item X, it costs \$10.

a. Whenever item X is ordered, what should the order size be?

b. What is the annual cost for ordering item X?

c. What is the annual cost for storing item X?

40. In the past, Taylor Industries has used a fi xed–time period inventory system that involved taking a complete inventory count of all items each month. However, increasing labor costs are forcing Taylor Industries to examine alternative ways to reduce the amount of labor involved in inventory stockrooms, yet without increasing other costs, such as shortage costs. Here is a random sample of 20 of Taylor’s items.

Item

Number

Annual

Usage

Item

Number

Annual

Usage

1

2

3

4

5

6

7

8

9

10

\$ 1,500

12,000

2,200

50,000

9,600

750

2,000

11,000

800

15,000

11

12

13

14

15

16

17

18

19

20

\$13,000

600

42,000

9,900

1,200

10,200

4,000

61,000

3,500

2,900

a. What would you recommend Taylor do to cut back its labor cost? (Illustrate using an ABC plan.)

b. Item 15 is critical to continued operations. How would you recommend it be classified?

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