Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
12th Edition
ISBN: 9780134741062
Author: Lee J. Krajewski, Manoj K. Malhotra, Larry P. Ritzman
Publisher: PEARSON
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Chapter 10, Problem 5P
Management at the Kerby Corporation has determined the following aggregated demand
An employee can produce an average of 10 units per month. Each worker on the payroll costs $2,000 in regular—time wages per month. Undertime is paid at the same rate as regular time. In accordance with the labor contract in force, Kerby Corporation does not work overtime or use subcontracting. Kerby can hire and train a new employee for $2,000 and lay off one for $500. Inventory costs $32 per unit on hand at the end of each month. At present, 140 employees are on the payroll and anticipation inventory is zero.
- Prepare a production plan that only uses a level workforce and anticipation inventory as its supply options. Minimize the inventory left over at the end of the year. Layoffs. undertime, vacations, subcontracting, backorders, and stockouts are not options. The plan may call for a one-time adjustment of the workforce before month 1 begins.
- Prepare a production plan using a chase strategy, relying only on hiring and layoffs.
- Prepare a mixed—strategy production plan that uses only a level workforce and anticipation inventory through month 7 (an adjustment of the workforce may be made before month 1 begins) then switches to a chase strategy for months 8 through 12.
- Contrast these three plans on the basis of annual costs.
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1. Foxie Owl’s Besty Bagel shop makes fresh bagels. She has to buy raw materials fresh every day for selling on that day. She wants to know exactly how much should she spend on raw materials. Foxie did some analysis over the past month and came back with the following numbers: Daily demand was equally likely to be 200, 225, 250, 275, or 300 bagels. What should be the number of bagels on hand to satisfy a Fill Rate requirement of 96%, rounded to next integer value?
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300
275
286
263
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The planner at a company that makes garden tractors is about to prepare an aggregate production plan that will cover the next 6 months. She has collected the following information:
Month
Demand Forecast Above the available capacity through permanent workforce
1
1,000
2
1,000
3
2,000
4
3,000
5
4,000
6
1,000
Total:
12,000
Production per month = 20 units per worker
Initial inventory = 500 units
Desired ending inventory (at the end of month 6) = 0 units
Cost:
Hire cost = $500 per temporary worker
Inventory = $10 per tractor per month
Backorder = $150 per tractor per month
The optimum aggregate plan is:
Month
1
2
3
4
5
6
Total
Forecast Demand above regular capacity
1,000
1,000
2,000
3,000
4,000
1,000
12,000
# of temporary workers required
50
50
100
150
200
50
Temp. Workers hired
25
25
50
75
0
0
Temp. workers laid off
0…
Chapter 10 Solutions
Operations Management: Processes and Supply Chains (12th Edition) (What's New in Operations Management)
Ch. 10 - List the types of costs incurred when employees...Ch. 10 - Prob. 2DQCh. 10 - Prob. 3DQCh. 10 - Explain why management should be concerned about...Ch. 10 - The Barberton Municipal Division of Road...Ch. 10 - Bob Canton’s golf camp estimates the following...Ch. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Management at the Kerby Corporation has determined...Ch. 10 - Gretchen’s Kitchen is a fast-food restaurant...
Ch. 10 - Prob. 7PCh. 10 - Tax Prep Advisers, Inc. has forecasted the...Ch. 10 - Climate Control, Inc. makes expedition-quality...Ch. 10 - Prob. 11PCh. 10 - Gemini Inc. is using the Sales and Operations...Ch. 10 - Gerald Glynn manages the Michaels Distribution...Ch. 10 - Cara Ryder manages a ski school in a large resort...Ch. 10 - Prob. 15PCh. 10 - Prob. 17PCh. 10 - The Hickory Company manufactures wooden desks....Ch. 10 - Prob. 19PCh. 10 - The Mowry Machine Shop still has five jobs to be...Ch. 10 - If we use the same number of workers in each...Ch. 10 - Prob. 2AMECh. 10 - Prob. 3AMECh. 10 - Suppose the overtime cost is $3,300. What happens...Ch. 10 - Suppose the undertime cost is the same as the...Ch. 10 - Prob. 6AMECh. 10 - Prob. 1VCCh. 10 - Does Starwood employ a chase, level, or mixed...Ch. 10 - How would staffing for the opening of a new hotel...Ch. 10 - Explain the alternatives available to Darlene Fry...Ch. 10 - Prob. 2C
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