QUANTITATIVE METHODS FOR MGMT DECISIONS
DSC 410 EXAMINATION I
SPRING, 2015
NAME: Alex Schjang
Simple Linear Regression
REGRESSION ANALYSIS
There has been a problem of muggings in the Central Park of New York City
in summer months. A police cadet took a ra

QUANTITATIVE METHODS FOR MGMT DECISIONS
DSC 410 Final Examination, spring of 2015
NAME: Alex Schjang
SECTION A - PROJECT MGMT
(1) The following activities are part of a project to be scheduled
Activity
Immediate Predecessor(s)
Activity Time (Weeks)
A
2
B

QUANTITATIVE METHODS FOR MGMT DECISIONS &
STATISTICS FOR MGMT DECISIONS
CHI-SQUARE TESTS FOR INDEPENDENCE REVIEW, #2
April 22nd 2015
Contingence tables:
Worked out example
A 1980 survey asked 508 girls aged 14 17 whether or not they
used oral contraceptiv

PRODUCTION & OPERATIONS MGMT DECISIONS
LINEAR PROGRAMMING APPLICATIONS (Spring 2015)
BLENDING TYPE PROBLEMS
EXAMPLE 2
The Brand Strand Oil Company produces regular and
premium gasoline for independent service stations in the
southeastern United States.
Th

QUANTITATIVE METHODS
Introduction to Linear Programming Spring, 2014
FILE #1
B. Kisuule, Ph.D.
One of the problems all operations managers face day in and day out
is the issue of resource allocation.
We all have unlimited resources, such as budget or ti

QUANTITATIVE METHODS FOR MGMT DECISIONS
DSC 410 LINEAR PROGRAMMING SPRING 2015
BLENDING TYPE OF PROBLEMS
Problem #1
The Old South meat processing firm produces hotdogs meets from 4
ingredients:
(1) Chicken
(2) Beef
(3) Pork, and
(4) Cereal additive
The fi

QUANTITATIVE METHODS FOR MGT DECISIONS
LINEAR PROGRAMMING APPLICATIONS
Blending Problems
EXAMPLE #3
A petroleum company produces three grades of gasoline super, premium,
and regular from three distillates. The company wants to determine the
optimal mix of

QUANTITATIVE METHODS / OPERATIONS MANAGEMENT
LINEAR PROGRAMMING APPLICATIONS
The Lumber Yard Type Problem Spring 2015
The MDL Lumber Yard has received the following order for
boards in three lengths
Length
7ft
9ft
10ft
Order (quantity)
700 boards
1,200 bo

QUANTITATIVE METHODS FOR MGMT DECISIONS
LINEAR PROGRAMMING APPLICATIONS
PERSONEL SCHEDULING Spring - 2015
The Chatham County Sheriffs Department schedules police
officers for 8-hour shifts. The beginning times for shifts are:
8.00 A.M.
Noon
4:00 P.M.
8:00

QUANTITATIVEMETHODS
Introduction to Linear Programming SPRING 2014, 24th
Product Mix Type Problems FILE #3
The Beaver Creek Pottery Company is a small crafts operation. The
company employs skilled artisans to produce clay bowls and mugs with
authentic Nat

QUANTITATIVE METHODS - PRODUCTION & OPERATIONS
MGMT- Spring 2015
PROJECT MGMT & CONTROL PART II
Deterministic Activity Times Problems
1. St. Croix by the Sea Condominium, located on St. Croix, is undertaking a
renovation of its main building. The project

QUANTITATIVE METHODS / OPERATIONS MGMT
Spring 2015
Network Models Project Management & Control
Part I
Project management is distinguished from production management primarily by
the non-repetitive nature of the work; a project is a one-time effort to acc

QUANTITATIVE METHODS FOR MGT DECISIONS
Linear Programming Applications
The Transportation Problem (for BEN KISUULE)
NAME_
Assignment #3
This type of problem is called assignment problem, but its formulation
is very similar to the transportation problem
A

QUANTITATIVE METHODS FOR MGT DECISIONS
Linear Programming Applications
The Transportation Problem (for BEN KISUULE)
NAME_
Assignment #2
The Shultz Beer Company has Breweries in two cities that supply the
following number of barrels of draft beer to the co

QUANTITATIVE METHODS FOR MGT DECISIONS
Linear Programming Applications
The Transportation Problem (for BEN KISUULE)
NAME_
Assignment #1
Problem 1
Coal is mined and processed at the following four mines in Kentucky, West
Virginia, and Virginia;
Mine Locati

MULTIPLE REGRESSION REVIEW #2
DSC 410 & DSC 430
The data below is a random sample of twenty observations of (1) Height of
Mother, (2) Height of Father, (3) Height of their Child, and (4) Gender of the
child.
Height of
Mother
Height of
Father
Height of
Chi

MULTIPLE REGRESSION REVIEW
DSC 410 & DSC 430
The data below is a random sample of twenty observations of (1) Height of
Mother, (2) Height of Father, and (3) Height of their daughter.
Height of
Mother
Height of
Father
Height of
Daughter
Height of
Mother
He

OPERATIONS MANAGEMEMT FALL, 2014
LINEAR PROGRAMMING Product Mix Type Problems
NAME_
The Trim-Look Corporation makes several skirts, dresses, and sport coats.
Recently, a consultant suggested that the company re-evaluate its Safari
Look line and allocate i

DSC 410 PROJECT MGMT REVIEW: April 21st
(1) The following activities are part of a project to be scheduled
Activity
A
B
C
D
E
F
G
Immediate Predecessor(s)
B
A, D
C
E, F
Activity Time (Weeks)
2
5
1
10
3
6
8
(a) Draw the network
(b) What is the critical pat

QUANTITATIVE METHODS FOR MGT DECISION MAKING
EXAMPLE # 1
BASIC POISSON/EXPONENTIAL MODEL
Martys Barber Shop has one barber. Customers arrive at the rate of 2.2
customers per hour, and haircuts are given at an average rate of 5 per hour.
Use Poisson arriva

QUANTITATIVE METHODS FOR MGMT DECISIONS
DSC 410 REVIEW #1
Multinomial Experiments Goodness-of-Fit Test
The Chi-Square Test Spring, 2015
A multinomial experiment is an experiment that meets the
following conditions:
1. The number of trials is fixed.
2. The

QUANTIATIVE METHODS FOR MGMT DECISIONS
DSC 410 CHI-SQUARE TESTS FOR INDEPENDENCE
(CONTINGENCY TABLES)
WORKED OUT EXAMPLE
RECALL
The null hypothesis is:
H : the two categorical variables are independent
0
i.e., (there is no relationship between them)
The a

QUANTITATIVE METHODS FOR MGMT DECISIONS
DSC 410 CHI-SQUARE TESTS
PART I
MULTINOMIAL EXPERIMENTS SPRING , 2015
You are already familiar with the binomial probability
distribution and binomial experiments. In this lecture, we
consider multinomial experiment

DSC 410 Class Work, 6th April LP REVIEW
NAME: Alex Schjang
The Green Cattle Company manufactures three products, A, B, and C. The
contribution to profit is $3, $5 and $2 respectively. The sales department currently
has orders for at least 150 units of pro

QUANTITATIVE METHODS FOR MGT DECISIONS
SIMPLE LINEAR REGRESSION ANALYSIS Part 1
Spring 2014
SECTION A
In simple linear regression analysis, we attempt to spell out a
statistical linear relationship between two variables: X and Y.
Variable X is known as th

SimpleLinearRegressionApplicationinFinance
What'sthedifferencebetweenalphaandbeta?
Stock = + (S&P500)
Alpha and beta are both risk ratios that investors use as a tool to
calculate, compare and predict returns. You are most likely to see
alpha and beta ref

Alex Schjang
DSC 410 QUANTITATIVE METHODS FOR MGMT DECISIONS
April 1, 2015, Class Work
CHI-SQUARE APPLICATIONS
(1) After getting trounced by your little brother in a childrens game, you
suspect the die he gave you was unfair or unbalanced. To check, you
r

QUANTITATIVE METHODS - PRODUCTION AND OPERATIONS
MGT
SIMPLE LINEAR REGRESSION REVIEW
DSC 410 & DSC 430 FILE#2
DAILY HIGH and ICE CREAM SALES
The owner of a large chain of ice cream would like to study the effect of
atmospheric temperature on sales of ice

Quantitative Methods & OPERATIONS MGT DECISIONS
DSC 410 & DSC 430 Spring 2015,
MULTIPLE REGRESSION ANALYSIS INTRO.
Multiple Linear Regression:
In the simple linear regression model, we have only one
independent variable accounting or explaining the variat