Operations Management
13th Edition
ISBN: 9781259667473
Author: William J Stevenson
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 11, Problem 5P
Manager T. C. Downs of Plum Engines, a producer of lawn mowers and leaf blowers, must develop an aggregate plan given the
a. Develop a chase plan that matches the forecast and compute the total cost of your plan. Regular production can be less than regular capacity.
b. Compare the costs to a level plan that uses inventory to absorb fluctuations. Inventory carrying cost is $2 per engine per month. Backlog cost is $90 per engine per month. There should not be a backlog in the last month.
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NowJuice, Inc. produces bottled pickle juice. A planner has developed an aggregate forecast for demand (in cases) for the next four months. Use the following information to develop an aggregate plan using the LEVEL strategy. Inventory holding cost is $1 per month per case and backlog cost is $5 per month per case. Beginning inventory is zero.
Month
May
June
July
August
Forecast
452
520
600
719
Cost Per Unit
Monthly Capacity
Regular Production
19.40
400
Overtime Production
1.5 x Regular Prod Cost
400
What is the TOTAL cost of the LEVEL plan over the planning horizon?
Correct Answer
51,588.6
CAN SOMEONE SHOW ME HOW THEY GOT THE ANSWER 51588.6
Southeast Soda Pop, Inc., has a new fruit drink for which it has high hopes. John Mittenthal, the production planner, has assembled the
following cost data and demand forecast:
Click the icon to view the demand forecast.
E Click the icon to view the cost data.
John's job is to develop an aggregate plan. The three initial options he wants to evaluate are:
• Plan A: a strategy that hires and fires personnel as necessary to meet the forecast.
• Plan B: a level strategy.
• Plan C: a level strategy that produces 1,000 cases per quarter and meets the forecast demand with inventory and subcontracting.
a) Which strategy is the lowest-cost plan?
Try hiring and layoffs (to meet the forecast) as necessary (enter your responses as whole numbers).
Hiring and Layoff Plan
Layoff
(Units)
Hire
Quarter
Forecast
Production
Inits)
1,300
1
1,700
Costs/Other Data
Previous quarter's output = 1,300 cases
Beginning inventory = 0 cases
Stockout cost of backorders = $140 per case
Inventory holding cost = $45 per…
The forecast demand for fudge for the next four months is 120, 160, 20, and 60 pounds.
a. What is the recommended production rate if a level strategy is adopted with no backorders or stock outs?
b. What is the ending inventory for Month 4 under this plan?
c. What is the level production rate with no ending inventory in month 4.
Chapter 11 Solutions
Operations Management
Ch. 11 - What three levels of planning involve operations...Ch. 11 - What are the three phases of intermediate...Ch. 11 - Prob. 3DRQCh. 11 - Why is there a need for aggregate planning?Ch. 11 - What are the most common decision variables for...Ch. 11 - Prob. 6DRQCh. 11 - Briefly discuss the advantages and disadvantages...Ch. 11 - What are the primary advantages and limitations of...Ch. 11 - Briefly describe the planning techniques listed as...Ch. 11 - What are the inputs to master scheduling? What are...
Ch. 11 - Prob. 11DRQCh. 11 - What general trade-offs are involved in master...Ch. 11 - Who needs to interface with the master schedule...Ch. 11 - How has technology had an impact on master...Ch. 11 - Service operations often face more difficulty in...Ch. 11 - Name several behaviors related to aggregate...Ch. 11 - Compute the total cost for each aggregate plan...Ch. 11 - A manager would like to know the total cost of a...Ch. 11 - Determine the total cost for this plan given the...Ch. 11 - a. Given the following forecast and steady regular...Ch. 11 - Manager T. C. Downs of Plum Engines, a producer of...Ch. 11 - Manager Chris Channing of Fabric Mills, Inc., has...Ch. 11 - SummerFun. Inc., produces a variety of recreation...Ch. 11 - Nowjuice, Inc., produces Shakewell fruit juice. A...Ch. 11 - Wormwood, Ltd., produces a variety of furniture...Ch. 11 - Refer to Solved Problem 1. Prepare two additional...Ch. 11 - Refer to Solved Problem 1. Suppose another option...Ch. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 15PCh. 11 - Refer to Example 3. Suppose that regular-time...Ch. 11 - Prob. 17PCh. 11 - Prob. 18PCh. 11 - Prepare a master production schedule for...Ch. 11 - Update the master schedule shown in Figure 11.11...Ch. 11 - Prepare a master schedule like that shown in...Ch. 11 - Determine the available-to-promise (ATP)...Ch. 11 - Prepare a schedule like that shown in Figure 11.12...Ch. 11 - The objective is to choose the plan that has the...Ch. 11 - Prob. 2CQ
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