UNIVERSITY OF IOWA
Tippie College of Business
Department of Economics
ECON 3355 Economic and Business Forecasting Spring 2015
Why Study Forecasting?
Students who learn forecasting thus learn a valuable and in-demand skill and earn a competitive
advantage
Chapter 1 practice
Multiple Choice
1. A measure of the daily change in the closing value of the DJIA is a _ variable and a
variable indicating whether it moved up or down is a _ variable.
a.) continuous, discrete
b.) flow, stock
c.) random, determined
d.)
Econ 3355 Spring 2015 Homework 8
Overview
Assignment Date: Thursday, Feb. 27
Due Date: Thursday, March 5
This assignment includes individual work (download and test JMP.)
This assignment includes Team Written Report and Team Homework Presentation.
Dire
Econ 3355
Spring 2015
Quiz 1
30 points
Name
This quiz is based on textbook reading in Chapters 1, 5, and 6, and class discussion. For multiplechoice questions, circle the single-best answer.
1. Chapter 1 describes two types of forecasting, one of which tr
Econ 3355 Forecasting Spring 2015
Worksheet 2: Regression Practice With MINITAB
In this worksheet well practice MINITAB to continue our review of multiple regression.
DIRECTIONS:
1. Download MINITAB les from ICON Content:
Ames Homes
Bank Wages
Online A
Econ 3355 Forecasting Spring 2015
Worksheet 4: Forecasting Regression Residuals
In this worksheet well practice MINITAB to continue our review of multiple regression.
DIRECTIONS:
1. Download and open the JCPennys le used in Quiz 2.
2. Make a time plot (wi
Econ 3355
Spring 2015
March 12
Quiz 3
30 points
Name
Problem 1: Cubs, Revisited
Open the Cubs data. Suppose that the current time point of reference is Jan. 1, 1963. Our
goal is to predict annual Cubs attendance for the years 19631970 based on the past 1
Econ 3355 Forecasting Spring 2015
Worksheet 5: Time Series Building Blocks
I. Forecasting Methods Overview
Our catalog of forecast models so far this semester:
A. Cross-Sectional Data
1. Multiple Regression
If Residuals vs. Forecasts plot shows no obviou
Econ 3355 Forecasting Spring 2015
Worksheet 1 (Regression Review)
DIRECTIONS:
Work and discuss these problems with your team members. Choose the single best answer
for each multiple-choice question.
You may use the formula sheet and t table on the last
Econ 3355
Spring 2015
March 31
Quiz 4a
30 points
Name
The three questions below refer to the New York Times article assigned for class reading.
1. There were 2862 actively-managed domestic stock mutual funds studied in the article. How many
of the approxi
Econ 3355 Spring 2015 Homework 6
Overview
Assignment Date: Tuesday, Feb. 10
Due Date: Tuesday, Feb. 17
This assignment includes Team Written Report and Team Homework Presentation.
Directions
1. Work on the homework problems for Chapter 6 (Multiple Regre
Econ 3355 Spring 2015
Homework 5: Suggestions, Answers and
Comments
1. Exercise 5.3
(a)
MINITAB: The easiest way is with a tted-line plot:
Stat > Regression > Fitted Line Plot
> (Choose Response Melanoma, Predictor Ozone)
Fitted Line Plot
Melanoma Rates
Econ 3355 Spring 2015 Homework 5
Overview
Assignment Date: Tuesday, Feb. 3
Due Date: Thursday, Feb. 10
This assignment includes Team Written Report and Team Homework Presentation.
Directions
1. Work on the homework problems for Chapter 5 (Simple Regress
Gregory Hunter Freebeck
Personnel Economics
9/25/2015
Case Study 1
SG Cowen
SG Cowen is an extremely prestigious company, so it is very important that
they hire the right candidate for the position. While it is not in the best interest of
the company to m
Econ 3355 Spring 2015 Homework 7
Directions
Assignment Date: Thursday, Feb. 19
Due Date: Tuesday, Feb. 24
This assignment is intended for individual study and doesnt include a team presentation
component.
Specic Directions
It may be helpful to print th
Econ 3355
Name
Spring 2015
Quiz 2
30 points
Key
Problem 1: JCPenny Sales
In recent homework we used indicator (dummy) variables in regression to model seasonal
patterns in monthly time-series data. (We used 11 indicator variables to represent seasonal
pa
Business Forecasting Spring 2015
Homework 8 Solution/Class Presentation and Discussion
(Comments, Suggestions, Answers and Grading Guidelines)
I. Modeling Issues/Problems
(1) Are the movie data time-series data? Can model residuals be analyzed for autocor
Econ 3355 Spring 2015 Homework 9
Overview
Assignment Date: Thursday, March 5
Due Date: Tuesday, March 10
This assignment includes individual work only. (It does not involve team presentations.)
Directions:
Print these directions as an easy way to colle
Econ 3355
Spring 2015
Quiz 1
30 points
Name
This quiz is based on textbook reading in Chapters 1, 5, and 6, and class discussion. For multiplechoice questions, circle the single-best answer.
1. Chapter 1 describes two types of forecasting, one of which tr
Econ 3355
Spring 2015
Quiz 2
30 points
Name
Problem 1: JCPenny Sales
In recent homework we used indicator (dummy) variables in regression to model seasonal
patterns in monthly time-series data. (We used 11 indicator variables to represent seasonal
patter
Business Forecasting Spring 2015
Homework 6: Suggestions, Answers and Comments
1. Exercise 6.2
Scatterplot of original data:
Scatterplot of Consumption Per Customer vs Average Price
Consumption Per Customer
150
125
100
75
50
30
40
50
60
70
80
Average Pri
Econ 3355
Spring 2015
March 31
Quiz 4b
30 points
Name
The three questions below refer to the New York Times article assigned for class reading.
1. Which ARIMA model described in Chapter 7 and also discussed in our last class (Thursday,
March 26) seems to
Vtftx ECON 3355 Forecasting Fall 2012
Lecture 6: Autoregressive Models for Regression Error
Goal: Use Australian electricity production in the 1980s (the insample data) to forecast elec
tricity production in the 1990s (the out-ofsample data.)
Well co