Purchasing and Supply Chain Management
6th Edition
ISBN: 9781285869681
Author: Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher: Cengage Learning
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Question
Chapter C, Problem 1.2A
Summary Introduction
To explain: The initial problem and the problem appearing in the case.
Case summary:
Person SD and Person DM are the procurement managers at Company
Material quality and on-time delivery:
The quality of the materials plays an important role in the success of an organization. The quality of the materials plays a vital role in product quality. The on-time delivery of products is the delivery of products at the right time which makes it important for an organization to be competitive.
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Scenario
You have been given a task to create a demand forecast for the second year of sales of a premium outdoor grill.
Accurate forecasts are important for many reasons, including for the company to ensure they have the materials
they need to create the products required in a certain period of time. Your objective is to minimize the forecast
error, which will be measured using the Mean Absolute Percentage Error (MAPE) with a goal of being below 25%.
You have historical monthly sales data for the past year and access to software that provides forecasts based on
five different forecasting techniques (Naïve, 3-Month Moving Average, Exponential Smoothing for .2, Exponential
Smooth for .5, and Seasonal) to help determine the best forecast for that particular month. Based on the given
data, you will identify trends and patterns to create a more accurate forecast.
Approach
Consider the previous month's forecast to identify which technique is most effective. Use that to forecast the next…
Approach
Consider the previous month's forecast to identify which technique is most effective. Use that to forecast the next
month.
Remember to select the forecasting technique that produces the forecast error nearest to zero. For example:
a. Naïve Forecast is 230 and the Forecast Error is -15.
b. 3-Month Moving Forecast is 290 and the Forecast Error is -75.
c. Exponential Smoothing Forecast for .2 is 308 and the Forecast Error is -93.
d. Exponential Smoothing Forecast for .5 is 279 and the Forecast Error is -64.
e. Seasonal Forecast is 297 and the Forecast Error is -82.
The forecast for the next month would be 230 as the Naïve Forecast had the Forecast Error closest to zero with a
-15. This forecasting technique was the best performing technique for that month. You do not need to do any
external analysis-the forecast error for each strategy is already calculated for you in the tables below.
Naïve
Month Period
Actual
Demand
Naïve Forecast
Error
3-
Month
Moving
Forecast
3-
Month
Moving…
Chapter C Solutions
Purchasing and Supply Chain Management
Ch. C - Avion, Inc. Susan Dey and Bill Mifflin,...Ch. C - Prob. 1.2ACh. C - Prob. 1.3ACh. C - Prob. 1.4ACh. C - Prob. 1.5ACh. C - Avion, Inc. Susan Dey and Bill Mifflin,...Ch. C - Avion, Inc. Susan Dey and Bill Mifflin,...Ch. C - Prob. 1.8ACh. C - Prob. 1.9ACh. C - Prob. 1.10A
Ch. C - The Global Sourcing Wire Harness Decision Sheila...Ch. C - The Global Sourcing Wire Harness Decision Sheila...Ch. C - The Global Sourcing Wire Harness Decision Sheila...Ch. C - The Global Sourcing Wire Harness Decision Sheila...Ch. C - The Global Sourcing Wire Harness Decision Sheila...Ch. C - Prob. 3.1ACh. C - Prob. 3.2ACh. C - Prob. 3.3ACh. C - Prob. 3.4ACh. C - Prob. 3.5ACh. C - Prob. 3.6ACh. C - Prob. 3.7ACh. C - Prob. 3.8ACh. C - Prob. 3.9ACh. C - Prob. 3.10ACh. C - Prob. 3.11ACh. C - Prob. 3.12ACh. C - Prob. 3.13ACh. C - Prob. 5.1SACh. C - Prob. 5.2SACh. C - Prob. 5.3SACh. C - Prob. 5.4SACh. C - Prob. 5.1SBCh. C - Prob. 5.2SBCh. C - Scenario 3 Ben Gibson, the purchasing manager at...Ch. C - Scenario 3 Ben Gibson, the purchasing manager at...Ch. C - Scenario 4 Sharon Gillespie, a new buyer at...Ch. C - Scenario 4 Sharon Gillespie, a new buyer at...Ch. C - Scenario 4 Sharon Gillespie, a new buyer at...Ch. C - Prob. 6.2ACh. C - Prob. 6.3ACh. C - Prob. 6.4ACh. C - Prob. 6.5A
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