Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
10th Edition
ISBN: 9780134181981
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Question
Chapter 13, Problem 10P
a)
Summary Introduction
To evaluate: Plan C for the given information
Introduction: The aggregate plan is the output of sales and operations planning. The major concern of aggregate planning is the production time and quantity for the intermediate future. Aggregate planning would encompass a time prospect of approximately 3 to 18 months.
b)
Summary Introduction
To determine: Evaluate plan D for the given information
Introduction: The aggregate plan is the output of sales and operations planning. The major concern of aggregate planning is the production time and quantity for the intermediate future. Aggregate planning would encompass a time prospect of approximately 3 to 18 months.
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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…
Jose Martinez of El Paso had developed a polished stainless-steel tortilla machine that makes it a “showpiece” for display in Mexican restaurants. He needs to develop a 5-month aggregate plan. His forecast of capacity and demand follows:
Month
1
2
3
4
5
Demand
150
160
130
200
210
Regular capacity
150
150
150
150
150
Overtime capacity
20
20
10
10
10
Subcontracting: 100 units available over the 5-month period (NOT 100 units each month)
Beginning inventory: 0 units
Ending inventory required at the last month (i.e. month 5): 20 units.
Costs
Regular-time cost per unit
$100
Overtime cost per unit
$125
Subcontracting cost per unit
$135
Inventory holding cost per unit per month
$3
Assume that backorders are not permitted.
a) Find an aggregate production plan using the intuitive lowest cost approach. (i.e. Develop an aggregate plan using the transportation method).
b) State the corresponding…
3) AGGREGATE PLANNING
Mark Tuan, Operations Manager at GOT7 Furniture, has received the following
estimates of demand requirements:
January
1,100
February
1,200
March
1,400
April
1,800
May
1,800
June
1,600
Assuming stockout costs for lost sales of RM100 per unit, inventory carrying costs of
RM25 per unit per month, and a zero beginning and ending inventory. Analyze the extra
cost if the company vary the workforce, which performs at a current production level of
1,300 units per month. The cost of hiring additional workers is RM3,000 per 100 units
produced. The cost of layoffs is RM6,000 per 100 units cut back.
Chapter 13 Solutions
Principles of Operations Management: Sustainability and Supply Chain Management (10th Edition)
Ch. 13 - Make the case for, and then against, this pricing...Ch. 13 - Prob. 1DQCh. 13 - Why are SOP teams typically cross-functional?Ch. 13 - Prob. 3DQCh. 13 - Prob. 4DQCh. 13 - Prob. 5DQCh. 13 - Prob. 6DQCh. 13 - Prob. 7DQCh. 13 - Prob. 8DQCh. 13 - Prob. 9DQ
Ch. 13 - Prob. 10DQCh. 13 - Prob. 11DQCh. 13 - Prob. 12DQCh. 13 - Prob. 13DQCh. 13 - Prob. 14DQCh. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - The president of Hill Enterprises, Terri Hill,...Ch. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Consuelo Chua, Inc., is a disk drive manufacturer...Ch. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10PCh. 13 - Prob. 11PCh. 13 - Southeast Soda Pop, Inc., has a new fruit drink...Ch. 13 - Ram Roys firm has developed the following supply,...Ch. 13 - Jerusalem Medical Ltd., an Israeli producer of...Ch. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Prob. 18PCh. 13 - Dwayne Cole, owner of a Florida firm that...Ch. 13 - Prob. 24PCh. 13 - Prob. 25PCh. 13 - Prob. 26PCh. 13 - Evaluate the various configurations of operating...Ch. 13 - Prob. 2CSCh. 13 - After researching revenue (yield) management in...Ch. 13 - The Magic used its original pricing systems of...Ch. 13 - Prob. 3VC
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- JAYB, manager of a Fabrication company, has the following aggregate demand requirements and other data for the upcoming four quarters. Table 5: Forecast and cost information [Jadual 5: Maklumat Ramalan dan kos] Quarter [Suku] Demand [Permintaan] Previous quarter's output [Keluaran suku sebelumnya] 1,500 units 1 1,400 Beginning inventory [Inventori awal] 200 units 2 1,000 Hiring workers [Pengambilan pekerja] RM6 per unit 3 1,500 Laying off workers [Pembuangan pekerja] RM11 per unit 4 1,300 Unit cost [Kos unit] RM30 per unit With the information given, JAYB wants you to calculate the total cost of using chase strategy by hiring and layoff workers.arrow_forward3) Gang Aft Agley, a manufacturing company, faces the aggregate planning problem shown in the table below. Cost of regular production is $5 per unit, the cost of producing the same unit on overtime is $7, the cost of subcontracting is $8 per unit, and the cost of carrying a unit in inventory from one month to the next is $2. January February March April May Forecast 500 750 1200 650 300 Beginning Inventory 100 Regular Time Overtime Subcontracting Ending Inventory The labor contract at the plant prohibits both overtime and subcontracting output to exceed 300 units in any five month window. The plant capacity is 500 units per month produced using two shifts, regardless of the number of days in a month. By policy, management wants to avoid stockouts. Formulate the aggregate plan using linear programming and solve it using Solver.arrow_forwardA 98.arrow_forward
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- 9. Wormwood, Ltd., produces a variety of furniture products. The planning committee wants to pre- pare an aggregate plan for the next six months using the following information. Month Cost Per Unit Demand Capacity Regular Overtime 1 2 3 160 150 160 150 150 10 10 4 180 170 5 6 140 150 150 160 160 0 10 10 10 Regular time Overtime Subcontract Inventory holding, per month $50 75 80 4 Subcontracting can handle a maximum of 10 units per month. Beginning inventory is zero. Develop a plan that minimizes total cost. No back orders are allowed. Regular capacity = Regular production.arrow_forward2.15 The opening backlog is 900 units. Forecast demand is shown in the following. Calculate the weekly production for level production if the backlog is to be reduced to 200 units. Week 1 2 3 4 5 6 Total Forecast Demand 600 700 700 700 600 500 Planned Production Projected 900 Backlogarrow_forwardm1arrow_forward
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