Operations Management 3251
Principles of Operations Management
Homework Assignment 2
Due February 26
1. Based on the following data, forecast sales for January of the next year (2015) using the nave method,
the stationary method, a 4-period simple moving

Operations Management 3251
Principles of Operations Management
Homework Assignment 1
Due February 12
Please complete the NORMDIST tutorial (a printout of a screenshot of the final result is all you need to hand
in). Then solve the next three problems base

Operations Management 3251
Practice Exam I
NAME _
STUDENT NUMBER _
Please read the following set of instructions. Do not open the exam until all of the
students are seated and the instructor begins the exam.
There are 27 multiple choice questions counting

OPMT 3251
Quiz
Review of Basic Statistics
1.
What is a random variable?
A quantity whose value is assigned by chance (a numerical value assigned to the
outcome of a [random] event).
or: A phenomena described by a distribution function.
2.
How do we depict

Forecasting
It's tough to make predictions, especially about the future.
Yogi Berra
(Chapter 3 of Operations & SM: The Core)
Definition
Major classifications
Qualitative
Time series
Causal
1
Classical Production Planning Hierarchy
Business Plan
Sale

Overview of Learning Curves
Preparation
Readings
Appendix B of Operations and Supply Management:
The Core
Objectives
Know the origins and application of learning curves
Understand how to solve learning curve problems
Tables
Spreadsheet application

Mu =
Sigma =
X1 =
X2 =
Area to the right of X2=
Area between X1 & X2 =
Area to the left of X1=
15 Tons/acre
1.41 Tons/acre
13 Tons/acre
4.5 Tons/acre
1
-0.078
0.078
1
Size of the farm =
Cost to harvest =
Selling price =
Yield=
Total Revenue
Total Cost
742

W_t =
W_t-1=
W_t-2=
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
Jan
0.5
0.3
0.2
1
Alpha =
0.2
3 Period 3 Period
Bias
Sales Nave Stationary MA W. MA Expon.
S.
Nave Stationary MA W. MA Expon.
S.
321
321
333
321
321
321
347
333
327
323.4
350
347 333.667 333.667 337

Mu =
Sigma =
X1 =
X2 =
15 Tons/acre
1.41 Tons/acre
13 Tons/acre
4.5 Tons/acre
Area to the right of X2=
1
Area between X1 & X2 = -0.078
Area to the left of X1=
0.078
1
Size of the farm =
Cost to harvest =
Selling price =
Yield=
Total Revenue742500
Total Co

J. Nathanial Barton
OPMT 3251
3/24/2015
Operations Management 3251
Principles of Operations Management
Homework Assignment 3
Due March 24
Question 1:
A time standard was set at 4.75 hours per unit based on the 50th unit produced (i.e.
Y50 4.75 ). If the t

W_t =
W_t-1=
W_t-2=
Apr
May
Jun
Jul
Aug
Sept
Oct
Nov
Dec
Jan
0.5
0.3
0.2
1
Alpha =
0.2
3 Period3 Period
Bias
MAD
Sales Nave Stationary MA W. MA Expon. Nave Stationary MA W. MA Expon. Nave Stationary MA W. MA Expon.
S.
S.
S.
321
321
333
321
321
321
347
333