
OPSMGT 255 Wk3: Forecasting
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University
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Hannah Liu
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2 Slides • 13 Questions
1
OPSMGT 255:
Game 3: Forecasting
70% answers right = 1.5 pts towards Assignment 1
TOP 10 = 0.5 points towards
TOP 3 in-person = a small bar of chocolate
2
Multiple Choice
The two general approches to forecasting are
mathematical and statistical
qualitative and quantitative
judgemental and qualitative
historical and associative
3
Multiple Choice
Which forecasting technique concentrates on individual's opinions for future outcomes rather than statistics?
Micro-forecasting
Quantitative forecasting
Micro-forecasting
Qualitative forecasting
4
Multiple Choice
Which forecasting technique is comprised of individuals from different departments who possess diverse knowledge and experience to predict sales?
Sales fore composite
Panel consensus
Delphi Method
Consumer Survey
5
Multiple Choice
Which method prevents social pressure and group thinking?
Panel consensus
the Delphi method
Grass roots
Consumer Surveys
6
Multiple Choice
Before undertaking quantitative forecasting, what should you always do?
plot the data identify patterns
ask your boss
compute the 3-week moving average
use adjusted exponential smoothing
7
Multiple Choice
Which of the following is NOT a time-series forecasting technique?
Simple moving average
Weighted moving average
Exponential smoothing
Exponential order quantity
8
Multiple Choice
Which word best describes the pattern shown in this graph?
cyclical
seasonal
trend
stationary
9
Multiple Choice
Which option best describes the pattern in this graph?
Increasing trend
Seasonal
Stationary
Decreasing trend
10
Multiple Choice
Compute the simple 3-week moving average forecast for week 6
40
90
30
33.33
11
Multiple Choice
Compute the weighted moving average forecast for week 6, using the weights 0.5, 0.2, 0.3 (where 0.5 is for the most recent period).
27
32
30
28
12
Multiple Choice
Given an actual demand of 100, a previous forecast of 90, and an α of 0.3. Compute the forecast for the next period (week 2) using simple exponential smoothing, with α = 0.3.
90
100
93
95
13
Multiple Select
Which of the following is a technique for assessing forecast accuracy? (2 possible correct answers)
Mean Absolute Deviation
Moving Average
Mean Absolute Percentage Deviation
Exponential Smoothing
14
Multiple Choice
What is the main advantage of using adjusted exponential smoothing over simple exponential smoothing?
It is easier to implement and requires less data
It can handle data with both trend and seasonality
It is more accurate for short-term forecasts
It does not require the use of a smoothing constant
15
Thank you!
OPSMGT 255:
Game 3: Forecasting
70% answers right = 1.5 pts towards Assignment 1
TOP 10 = 0.5 points towards
TOP 3 in-person = a small bar of chocolate
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