ORIE 3300/5300
RECITATION 2
Summer 2017
In this recitation we review
how to download the AMPL modeling language package;
how to use AMPL to solve simple linear programs.
Work on computing assignments in declared pairs (as the course outline describes),
ORIE 3300/5300
RECITATION 1
Summer 2017
LINEAR ALGEBRA REVIEW 45 minutes
These 4 questions, printed on both sides of each sheet, will help
you review how prepared you are in linear algebra. Make your best
try at each question. Write in the space provided.
7 Finding an initial tableau
To begin the simplex method for solving a linear program in standard equality
form, we need to nd an initial feasible tableau. Sometimes, this is easy. For
example, the rst linear program we studied was the problem
maximize $1
ORIE 3120 Equations Spring 2017
Basic EOQ
Q
T
2K
2K
h
Ic
R for T
Q*
K
hQ
c
ordering, purchasing, holding
Q
2
K hQ
G
ordering, holding
Q
2
G
y 1 Q* Q 1 T * T
y * 2 Q Q* 2 T T *
Finite Rate EOQ
T T1 T2
Q T
H P T1
where
H maximum inventory
T1 uptime
T
ORIE 3120
ICE May 4, 2017
1. (Spring 2005) Find the schedule for the data that follows that minimizes mean flow time with
no tardy jobs.
t
d
A
17
90
B
22
70
C
12
109
D
6
114
E
11
77
F
17
41
G
9
98
H
15
77
I
10
130
J
9
135
2. (Practice 2016)
1. (Spring 201
ORIE 3120 Homework #4
Due Wednesday, March 15, 2017
1. Grainger Inc. imports electric motors from China. The Grainger DC manager keeps inventory
on the Keystone-11 motor using a periodic review scheme, with a review period of 4 weeks.
The lead time for th
ORIE 3120
Homework #9
Due Friday, May 5, 2017 by 2:30 PM
Each control chart problem should include printouts of the charts.
1. Twenty subgroups of size n = 4 are taken from an Arizona Iced Tea bottle filling
process. The data is given as the amount of flu
ORIE 3120 HW 3 Due March 1, 2017
Spring 2017
1. Wags Whitin is a purchasing agent with Delias, a fashion store for teens. She needs
to figure out an optimal order scheme for fake fingernail kits. The weekly demand
for the kits is stochastic, approximated
ORIE 3120
Homework #8
Due April 26, 2017
You must include a computer printer printout of relevant R output for each problem.
Hand printed work is not accepted.
Problem 1. Logistic analysis in R. First, enter the data in the file castdata.csv:
cast = read.
OR&IE 3120
Homework #1
Due February 8, 2017 in the homework box across from 206 Rhodes Hall.
Helpful Guidelines
1. Please use blank 8.5 inch by 11 inch paper in portrait orientation. Please put your full
name and section number in the upper right hand cor
ORIE 3120 ICE Feb. 7 2017
Reminder: Homework #1 is due tomorrow by 2:30 PM in the box. Please put your full
Blackboard name on the submission as well as your section number (201, 202, or 203).
1. Incremental discount.
2. All units discount
Pet Depot, a pe
ORIE 3120
ICE
Feb. 28, 2017
1. Emily Whitson is implementing a periodic review inventory policy for the J. Riggs Plumbing
Supply Company in Brighton, Michigan. A particular septic tank for residential use has a
weekly demand of 80 units. The weekly demand
ORIE 3120
ICE April 13, 2017
1. Find the minimum number of tardy jobs for the following data:
Job
A
B
C
D
E
F
G
H
I
J
ti
15
11
10
5
25
4
8
3
20
11
di
71
76
73
88
47
59
24
55
23
47
, 2017
2. A commercial metal plating shop has 10 jobs that need to be proce
ORIE 3120
ICE May 2, 2017
1. Emerson Machining Inc. has found that the following multiple linear regression model
is useful as input to a logistic equation to predict the yield when machining steel parts.
Y = 0 + 1X1 + 2 X2 + 3X3
By running a multiple lin
ORIE 3120
Homework #6
Total cost = order cost + holding cost + purchase cost
Due Tuesday, March 29, 2017
A factory in Alabama purchases plastic resin used for a special injection molding operation. Each box
costs $40. Placing an order costs $140. The hold
ORIE 3120
ICE
March 9, 2017
Head, Inc. is in the process of setting their aggregate production rate for tennis racquets
for each of the next eight quarters. The demand forecast is given below. There will be
2000 units on hand at the beginning of the next
ORIE 3120
ICE Feb. 9 2017
1. Sparky Robbins is running a coffee shop in the metropolitan Atlanta/Orlando area. He
orders bagels from Ithaca Bakery to sell each day. The cost of each bagel is $0.80, and
each sells for $1.50. Bagels that do not sell by the
ORIE 3120
ICE
Feb. 23, 2017
1. Annual demand for calligraphy pens at the Cornell Store is normally distributed with mean
1,000 and standard deviation 250. The store purchases the pens for $6 and sells them for $20
each. The lead time is one week. The orde
ORIE 3120
ICE
Feb. 16, 2017
1. Eve Jenkins works at McKenzie Childs in Aurora, New York. She is planning the inventory
policy for the Courtly Checks Australian Mustard Serving Dish, made by a supplier in China.
Monthly demand has a normal distribution wit
ORIE 3120 Just Your Name_
Section (please circle)
201
202
203
Prelim Two Exam April 11, 2017 7:30 PM to 9:30 PM
Closed Book/Notes
1
2
3
4
5
6
7
8
Total
Be sure to provide at least three significant figures for all answers.
Periodic Review
Type I
T t T
2
ORIE 3120
In Class Exercises
January 31, 2017
1. At the Pamida Discount Store, a merchandiser, the following data is available for their
popular counter-top pizza cooker:
Monthly demand: 210 units
Order costs: $60 per order
Holding costs: $4.80 per unit p
ORIE 3120
ICE
Feb. 2, 2017
. 1. Roger the Shrubber Inc. designs, arranges, and sells shrubberies. They also make a variety of
furniture products, and also small adjustable gates for use in the home to keep small children
and pets confined to various areas
ORIE 310
ICE
March 23, 2017
Determine the order policy for the single item listed. The current inventory is 4, and the
ending inventory needs to be 8. The holding cost per period is $1 per item, and the order
cost is $40.
Week
Gross
Rqmts
Inv.
OnHand
Inv.
OR&IE 3120
Homework #5
Due Wednesday, March 22, 2017
1. X-Print Manufacturing makes laser printers. One plant assembles a PL-4000 model. Standards indicate
that each worker can assemble 5 printers per day. The model costs $350 to make, and it costs $5 to
OR&IE 3120
Homework #2
Due February 15, 2017 in the homework box across from 206 Rhodes Hall.
Helpful Guidelines please work on this one:
3. One inch / 25 millimeter margins, please. Top, bottom, right, left.
Also, please give your answers to four signifi
A: 6W
[7:10
TH: 2,3
A.
444560025
'1 . Meredith Grey is the inventory manager for United Health Systems. Weekly demand
for a synthetic tendon is normally distributed with a mean of 90 units and a mam
deviation of 20. The review eriod is 2 weeks, and ma w
ORIE 3120 Due Thursday, April 20 by 2:30 PM.
1. A factory in Florida purchases plastic resin used for a special injection molding
operation. Each box costs $40. Placing an order costs $160. The holding cost per month
is 3% of the product cost. The net req
ORIE 3120 HW 3 Due March 1, 2017
Spring 2017
1. Wags Whitin is a purchasing agent with Delias, a fashion store for teens. She needs
to figure out an optimal order scheme for fake fingernail kits. The weekly demand
for the kits is stochastic, approximated
ORIE 3120 Name_
Prelim I March 7, 2017 7:30 PM to 9:30 PM
Closed Book/Notes
Section (please circle)
201
202
203
1
2
3
4
5
6
7
8
Please do not turn to the next page until given the signal by the proctor
2017 John Callister. Unauthorized reproduction or us