IEOR 150, Fall 2010 Suggested Solution to Homework 4
1. (a) The unit overage cost is co = 0.08 0.03 = $0.05 and the unit underage cost is cu = 0.35 0.08 = $0.27. Therefore, the critical ratio is cu = 0.84, co + cu which is between 0.7 and 0.85, the cumula
IEOR 150 Production Systems Analysis
Homework on Forecasting Methods
Fall, 2014, Prof. Leachman
Due Sept. 11, 2014
1. Shoreline Park in Mountain View, CA, has kept close tabs on the number of patrons visiting
the park since its opening in January. For the
IEOR 150 Production Systems Analysis
Solutions to Homework #1, Forecasting Methods
Fall, 2015, Prof. Leachman
Due Sept. 10, 2014
1. Shoreline Park in Mountain View, CA, has kept close tabs on the number of patrons visiting
the park since its opening in Ja
IEOR 150 Production Systems Analysis
Homework #4, Stochastic Inventory Models
Fall, 2015, Prof. Leachman Due Oct. 6, 2015
1. Irwins Appliances sells a particular model of an electric fan, with most of the sales being made in the
summer months. Irwins make
Department of Industrial Engineering & Operations Research
IEOR150 Production System Analysis
Sampe Midterm Exam 2 Name: Grade: Fall 2010
1. A rm imports six items from the Far East. The relevent data for the six items are provided in the following Table.
IEOR 150 Production Systems Analysis
Homework #2 Solutions, Deterministic Inventory Models
Fall, 2014, Prof. Leachman
Due Sept. 18, 2014
1. A large automobile repair shop installs about 1,250 mufflers per year, 18 percent of
which are for imported cars. A
IEOR 150 Production Systems Analysis
Homework on Forecasting Methods Solutions
Fall, 2014, Prof. Leachman
Due Sept. 11, 2014
1. Shoreline Park in Mountain View, CA, has kept close tabs on the number of patrons visi
IEOR 150 Production Systems Analysis
Homework #3, Deterministic Inventory Models
Fall, 2014, Prof. Leachman
Due Sept. 25, 2014
1. A metal fabrication shop has a single punch press. There are currently three parts that the shop
has agreed to produce that r
IEOR 150 Production Systems Analysis
Solutions to Homework #7, MRP
Fall, 2014, Prof. Leachman
Due Nov. 13, 2014
1. The Noname Computer Company builds a computer with model designation ICU2. It imports the
motherboard from Taiwan, whereupon the company ins
IEOR 150, Fall 2010 Homework 1
Note. For all problems asking for the optimal order/production cycles, please answer in YEARS. 1. (Problem 4.10 in the textbook; 20 points) A specialty coeehouse sells Colombian coee at a fairly steady rate of 280 pounds ann
IEOR 150
Fall, 2014, Prof. Leachman
Supplemental Notes on Aggregate Planning
Introduction
The text provides discussion of a couple of manually-prepared aggregate production plans (the
Chase Strategy and the Constant Workforce Strategy), then introduces a
IEOR 150
Supplemental Notes on Critical Path Scheduling Models
Prof. Robert C. Leachman
Fall, 2014
1. Basic CPM
The Critical Path Method (CPM) is a project management tool for scheduling project activities
and assessing project progress. In its most basic
IEOR 150 Production Systems Analysis
Fall, 2014, Prof. Leachman
Supplemental Notes on Deterministic Inventory Analysis
A Special Opportunity to Procure
An important situation often faced by retailers and manufacturers is a one-time opportunity to
procure
IEOR 150 Production Systems Analysis
Supplemental Notes on Factory Floor Scheduling
Prof. Robert C. Leachman
November, 2014
1. Introduction
The primary purpose of factory floor scheduling is to ensure the factory production plan is
fulfilled. The factory
IEOR 150 Production Systems Analysis
Supplemental Notes on Material Requirements Planning (MRP)
Fall 2014, Prof. Robert C. Leachman
Introduction: An Overview of Production Planning
Production Planning is the business process of determining target input an
IEOR 150
Production Systems Analysis
Fall, 2014, Prof. Leachman
Solutions to Homework Assignment 8, Due Nov. 20, 2014.
As discussed in class, one means of controlling the WIP level and the cycle time in a factory is
by controlling the release of new work
IEOR 150 Production Systems Analysis
Fall, 2014, Prof. Leachman
Solutions to Homework Assignment 9, Due Thursday Dec. 2.
1. A project network has the following activities, precedence relationships, and time estimates,
expressed in weeks:
Activity
a
b
c
d
Solutions to IEOR 150 Production Systems Analysis
Homework 6, Aggregate Planning
Fall 2014, Prof. Leachman
Due Thursday, Nov. 6, 2014
1. In a produce-to-stock situation where demand varies with time, the aggregate planning
strategies we investigated invol
IEOR 150 Homework #6 Homework problems due Thursday, December 7 in class (no late HW accepted) American Semiconductor Case-"bonus" assignment* due Tuesday, November 27 With a small team, prepare a report of 2-3 pages that addresses the following: (1) Sele
)-
SHORT ANSWERS TO PRACTICE PROBLEMS FOR MIDTERM 1 7
W92 =1 15.47 feasible, so optimal for all units discounted
1 (a) 3(4) _ I
(1) W = 103.28 not feasible
3(5)
W = 442.22 valid, so this is the only 501!) that needs to be considered
2(a) cu=6-3=3
co=3-1=
PRACTICE QUESTIONS FOR MIDTERM #1 Note: The problems on the exam may not have the same format as these questions. Instead, the questions are designed to help you study most of the topics to be covered on the exam. This set of questions is longer than the
IEOR 150 Production Systems Analysis
Solutions to Homework #5, Deterministic Inventory Models
Fall, 2014, Prof. Leachman
Due Oct. 14, 2014
1. The famous Ernie of the Sesame Street television program continually faces replenishment
decisions concerning his
IEOR 150 Production Systems Analysis
Homework #3, Deterministic Inventory Models
Fall, 2014, Prof. Leachman
Due Sept. 25, 2014
1. A metal fabrication shop has a single punch press. There are currently three parts that the shop has
agreed to produce that r
IEOR 150
Production Systems Analysis
Fall, 2014, Prof. Leachman
Homework Assignment 8, Due Nov. 20, 2014.
As discussed in class, one means of controlling the WIP level and the cycle time in a factory is
by controlling the release of new work into the fact
IEOR 150 Production Systems Analysis
Solutions to Homework #3, Deterministic Inventory Models
Fall, 2015, Prof. Leachman
Due Sept. 29, 2015
1. A metal fabrication shop has a single punch press. There are currently three parts that the shop has
agreed to p
IEOR 150 Production Systems Analysis
Homework #2 Solutions, Deterministic Inventory Models
Fall, 2015, Prof. Leachman
Due Sept. 17, 2015
1. A large automobile repair shop installs about 1,250 mufflers per year, 18 percent of which
are for imported cars. A
IEOR 150 Production Systems Analysis
Homework #4, Stochastic Inventory Models
Fall, 2015, Prof. Leachman
Due Oct. 6, 2015
1. Irwins Appliances sells a particular model of an electric fan, with most of the sales being
made in the summer months. Irwins make
IEOR 150 Production Systems Analysis
Homework #3, Deterministic Inventory Models
Fall, 2015, Prof. Leachman
Due Sept. 24, 2015
1. A metal fabrication shop has a single punch press. There are currently three parts that the shop
has agreed to produce that r
IEOR 150, Fall 2010 Homework 5
1. (25 points) Consider a pair of supply chains with one manufacturer and one retailer in each chain. Retailers are exclusive, i.e., each of them does not buy products from the manufacturer in the other supply chain. The eec
PCI and Cpk values are below 1.0 indicating that a significant number of parts will be scrap. This is
consistent with the estimated scrap rate.
A value of 1 or more would indicate a high degree of accuracy because >99% of the estimates will lie
within the
FACTS TO REMEMBER
SYMBOLS. RULES. AND GUIDELINES
FACTS TO REMEMBER
WC MAXIMUM MATERIAL CONDITION:
THAT CONDITION WHERE A FEATURE OF
SIZE CONTAINS THE MAXIMUM AMOUNT OF
NIATERIAL WITHIN THE STATED IJMTS
OE SIZE. EXAMPLE: MINIMUM HOLE SZE
AND MAXIMUM SHA
2/3/2014
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10 points
Questi
1
A golfer wants to know the distance to the hole within a tolerance of + 2 yards. A fellow golfer claims
that she can easily estimate that distance within the tolerance based on her years of experience.
a) What would you need to do if you were going to u
1/13/2014
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