OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
7th Edition
ISBN: 9780077835439
Author: Roger G Schroeder, M. Johnny Rungtusanatham, Susan Meyer Goldstein
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 15, Problem 6P
A firm makes a basic scissors consisting of three parts: the left side, the right side, and the screw that holds the sides together. At the present time, the firm has the following numbers of parts on hand and on order. The lead times for reorder of each part are also shown along with a BOM and a sketch of the scissors.
| 0 | On Hand | Weeks of Lead Time | Scheduled Receipts |
| Scissors | 100 | 1 | |
| Left side | 50 | 2 | 100 in week 2 |
| Right side | 75 | 2 | 200 in week 2 |
| Screw | 300 | 1 | 200 in week 1 |
- a. Assume the master
schedule calls for 200 scissors to be shipped in week 4 and 500 in week 5: work out a complete materials plan. - b. Suppose the supplier of right-hand sides calls to say that deliveries of the 200 parts on order will be one week late. What effect will this have on the materials plan?
- c. If demand for scissors is uncertain and has a standard deviation of 50 units, what would you recommend the firm do to maintain a 95 percent service level for scissors?
- d. If the delivery of the scissors parts is unreliable and the standard deviation of delivery' lead time is one week for each of the parts, what would you recommend the firm do to maintain its production schedule?
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Consider the following information.
PART X
Gross Requirements
Scheduled Receipts
Projected On-Hand Inventory 100
Q = 60, LT= 3 weeks, Safety Stock = 5
1
70
70
PART X
Gross Requirements
Scheduled Receipts
Projected On-Hand Inventory 100
Planned Order Releases
1
70
70
100
2
0
>
X
WEEK
3
40
Compute the planned order releases and projected on-hand inventory for component part X. Round your answers to the nearest whole number. If your
answer is zero, enter "0".
2
0
4
0
100
WEEK
3
40
5
160
60
4
0
40
0
X
5
160
Check My Work
-60
0
Shown below is a partially completed MPS record for ball bearings.
a. Develop the MPS for ball bearings. (Enter your responses as integers. A response of "0" is equivalent to being
not applicable.)
Item: Ball bearings
Quantity
on Hand: 400
Forecast
Customer
orders (booked)
Projected on-hand
inventory
MPS quantity
MPS start
1
550
300
350
500
2
250
350
0
0
3
450
250
50
500
4
450
200
100
500
Order Policy: 500 units
Lead Time: 1 week
Week
5
250
150
350
500
6
400
100
450
500
7
200
50
250
0
8
250
100
To o
9
450
50
50
10
450
150
100
500 500
This question is based on the following information pertaining to material Pogi: Usage 50 – 100 lbs. per day Lead time 8 – 12 days Size of the order 600 lbs. No. of days in a year 340 What is the average stock level?
A. 1,250 B. 1,200 C. 1,000 D. 9252. What is the maximum stock level?
2,500
2,000
1,400
1,2003. What is the minimum stock level?
450
800
850
1,000 4. What is the re-order level?
1,200
1,600
1,750
1,800
Chapter 15 Solutions
OPERATIONS MANAGEMENT IN THE SUPPLY CHAIN: DECISIONS & CASES (Mcgraw-hill Series Operations and Decision Sciences)
Ch. 15.7 - Prob. 1OLCh. 15 - Prob. 1DQCh. 15 - Prob. 2DQCh. 15 - With regard to inventory management, discuss the...Ch. 15 - Prob. 4DQCh. 15 - How much safety stock should be carried in a MRP...Ch. 15 - Prob. 6DQCh. 15 - Prob. 7DQCh. 15 - Prob. 8DQCh. 15 - Prob. 9DQ
Ch. 15 - Describe how MRP? concepts could be used for the...Ch. 15 - How are MRP and ERP related?Ch. 15 - The following information is given for a...Ch. 15 - eXcel The Old Hickory Furniture Company...Ch. 15 - Product A consists of subassemblies B and C....Ch. 15 - eXcel The BOM for product A given below Part on...Ch. 15 - The master scheduler in the ABC Widget Company is...Ch. 15 - A firm makes a basic scissors consisting of three...Ch. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - A small toy robot is assembled from sis parts: a...
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