Maggie Moylan Motorcycle Corp. uses kanbans to support its transmission assembly line. Determine the size of the kanban for the mainshaft assembly and the number of kanbans needed.

Setup cost $=\$ 20$

Annual holding cost of mainshaft assembly $=\$ 250$ per unit

Daily production $=300$ mainshafts

Annual usage $=20,000(=50$ weeks $\times 5$ days each $x$ daily usage of 80 mainshafts)

Lead time $=3$ days

Safety stock $=\frac{1}{2}$ day's production of mainshafts

Rick Wing has a repetitive manufacturing plant producing automobile steering wheels. Use the following data to prepare for a reduced lot size. The firm uses a work year of 305 days.

What is the setup cost, based on the desired lot size?

Chris Sandvig Irrigation, Inc., has summarized the price list from four potential suppliers of an underground control valve. See the accompanying table. Annual usage is 2,400 valves; order cost is $10 per order; and annual inventory holding costs are$3.33 per unit. Which vendor should be selected and what order quantity is best if Sandvig Irrigation wants to minimize total cost?

• VENDOR: | QUANTITY | PRICE | |----------|--------| | 1-49 | $35,00 | | 50-74 |$34.75 | | 75-149 | 33.55 | | 150-229 | 32.35 | | 300-499 | 31.15 | | 500+ | 30.75 |

• VENDOR B: | QUANTITY | PRICE | |:--------:|:------:| | 1-74 | $34,75 | | 150-299 |$32.80 | | 300-499 | 31.60 | | 500+ | 30.50 |

• VENDOR C: | QUANTITY | PRICE | |:--------:|:------:| | 1-99 | $34,50 | | 100-199 |$33.75 | | 200-399 | 32.50 | | 400+ | 31.10 |

• VENDOR D: | QUANTITY | PRICE | |:--------:|:------:| | 1-199 | $34,25 | | 200-399 |$33.00 | | 400+ | 31.00 | | | |

Zhu Manufacturing is considering the introduction of a family of new products. Long-term demand for the product group is somewhat predictable, so the manufacturer must be concerned with the risk of choosing a process that is inappropriate. Faye Zhu is VP of operations. She can choose among batch manufacturing or custom manufacturing, or she can invest in group technology. Faye won't be able to forecast demand accurately until after she makes the process choice. Demand will be classified into four compartments: poor, fair, good, and excellent. The table below indicates the payoffs (profits) associated with each process/demand combination, as well as the probabilities of each long-term demand level:

What would Faye Zhu be willing to pay for a forecast that would accurately determine the level of demand in the future?

Pauline Found Manufacturing, Inc., is moving to kanbans to support its telephone switching-board assembly lines. Determine the size of the kanban for subassemblies and the number of kanbans needed.

Setup cost $=\$ 30$

Annual holding cost $=\$ 120$ per subassembly

Daily production $=20$ subassemblies

Annual usage $=2,500(50$ weeks $\times 5$ days each $\times$ daily usage of 10 subassemblies)

Lead time $=16$ days

Safety stock $=4$ days $^{\prime}$ production of subassemblies

Howard's medical testing company in Kansas wishes to assign a set of jobs to a set of machines. The following table provides the production data of each machine when performing the specific job:

What is the total production of your assignments?

J.C. Howard's medical testing company in Kansas wishes to assign a set of jobs to a set of machines. The following table provides the production data of each machine when performing the specific job:

Determine the assignment of jobs to machines that will maximize total production.

Pauline Found Manufacturing, Inc., is moving to kanbans to support its telephone switching-board assembly lines. Determine the size of the kanban for subassemblies and the number of kanbans needed. Setup cost = $30 Annual holding cost =$120 per subassembly Daily production = 20 subassemblies Annual usage = 2,500 (

$$\text{50 weeks}\times\text{5 days each}\times\text{daily usage of 10 subassemblies}$$

) Lead time = 16 days Safety stock = 4 days’ production of subassemblies

Gordon Miller's job shop has four work areas, A, $B, C$, and D. Distances in feet between centers of the work areas are:

Work pieces moved, in hundreds of work pieces per week, between pairs of work areas, are:

It costs Gordon S1 to move 1 work piece 1 foot. What is the weekly total material handling cost of the layout?

The cost (in dollars) for producing x units of one product and y units of a second product is

$$C(x, y)=0.03 x^2+6 y+2 x y+10 .$$

The weekly production of the first product varies from 100 units to 150 units, and the weekly production of the second product varies from 50 to 100 units. Estimate the average weekly cost for these two products.

Jamison Day Consultants has been entrusted with the task of evaluating a business plan that has been divided into four sections-marketing, finance, operations, and human resources. Chris, Steve, Juana, and Rebecca form the evaluation team. Each of them has expertise in a certain field and tends to finish that section faster. The estimated times taken by each team member for each section have been outlined in the table below. Further information states that each of these individuals is paid $\$ 60$ /hour.

What is the total cost of these assignments?

Times Taken by Team Members for Different Sections (minutes)

Tej Dhakar's company wants to establish kanbans to feed a newly established work cell. The following data have been provided. How many kanbans are needed?

Rick Wing has a repetitive manufacturing plant producing automobile steering wheels. Use the following data to prepare for a reduced lot size. The firm uses a work year of 305 days.

What is the setup time, based on$40 per hour setup labor?

Rick Wing has a repetitive manufacturing plant producing automobile steering wheels. Use the following data to prepare for a reduced lot size. The firm uses a work year of 305 days.

What is the setup time, based on $\$ 40$ per hour setup labor?