OPEARATIONS MANAG.REV CUSTOM 2017
17th Edition
ISBN: 9781323590058
Author: Pearson
Publisher: PEARSON C
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Chapter 4, Problem 7P
The actual demand for the patients at Omaha Emergency Medical Clinic for the first 6 weeks of this year follows:
| WEEK | ACTUAL NO. OF PATIENTS |
| 1 | 65 |
| 2 | 62 |
| 3 | 70 |
| 4 | 48 |
| 5 | 63 |
| 6 | 52 |
Clinic administrator Marc Schniederjans wants you to
- a. What is the value of your forecast?
- b. If instead the weights were 20, 15, 15, and 10, respectively, how would the forecast change? Explain why.
- c. What if the weights were 0.40, 0.30, 0.20, and 0.10, respectively? Now what is the forecast for week 7?
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2.
The actual number of patients at Providence Emergency Medical Clinic for the first six weeks of this year follows:
Week
Actual No. of Patients
1
85
2
88
3
96
4
80
5
84
6
93
Clinic administrator Dana Schniederjans wants you to forecast patient numbers at the clinic for week 7 by using this data. You decide to use a weighted moving average method to find this forecast. Your method uses four actual demand levels, with weights of
0.500
on the present period,
0.250
one period ago,
0.125
two periods ago, and
0.125
three periods ago.
Part 2
a) What is the value of your forecast?
The value of the forecast is _________patients (round your response to two decimal places).
The actual number of patients at Providence Emergency Medical Clinic for the first six weeks of this
year follows:
Week Actual No. of Patients
1
65
68
77
59
66
75
23456
2
5
6
Clinic administrator Dana Schniederjans wants you to forecast patient numbers at the clinic for week 7 by
using this data. You decide to use a weighted moving average method to find this forecast. Your method
uses four actual demand levels, with weights of 0.500 on the present period, 0.250 one period ago, 0.125
two periods ago, and 0.125 three periods ago.
a) What is the value of your forecast?
The value of the forecast is patients (round your response to two decimal places).
b) If instead the weights were 40, 20, 10, and 10, respectively, how would the forecast change?
OA. The value of the forecast will decrease.
B. The value of the forecast will remain the same.
C. The value of the forecast will increase.
c) What if the weights were 0.40, 0.30, 0.20, and 0.10, respectively? Now what is the forecast for week 7?…
Use simple exponential smoothing with a -0.8
to forecast electric scooter sales at Guelph-
Humber Inc. for July. Assume that the
forecast for May was for 45 electric scooters.
Round your answer to 1 decimal
Electric Scooter Sales
Month
May 42
June 47
July 45
August 40
Weekly demand for medical masks for the
last five weeks at Chopper Drug Store has
been as follows: 92, 96, 100, 100 and 102
(listed from the oldest to most recent).
Suppose a naive forecast was used to
forecast demand. What would the MAD be for
this situation?
Enrollment in a particular Yoga class at
Guelph Fitness Centre for the last five
months has been 80, 86, 88, 88 and 90(listed
from the oldest to most recent). Suppose a
two-month mov
average was used to
forecast enrollment. What would the MSE be
for this situation?
Chapter 4 Solutions
OPEARATIONS MANAG.REV CUSTOM 2017
Ch. 4 - What is a qualitative foretasting model, and when...Ch. 4 - Identify and briefly describe the two general...Ch. 4 - Identify the three forecasting time horizons....Ch. 4 - Briefly describe the steps that are used to...Ch. 4 - A skeptical manager asks what medium-range...Ch. 4 - Explain why such forecasting devices as moving...Ch. 4 - What is the basic difference between a weighted...Ch. 4 - What three methods are used to determine the...Ch. 4 - Research and briefly describe the Delphi...Ch. 4 - What is the primary difference between a...
Ch. 4 - Define time series.Ch. 4 - What effect does the value of the smoothing...Ch. 4 - Explain the value of seasonal indices in...Ch. 4 - Which forecasting technique can place the most...Ch. 4 - In your own words, explain adaptive forecasting.Ch. 4 - What is the purpose of a tracking signal?Ch. 4 - Explain, in your own words, the meaning of the...Ch. 4 - What is the difference between a dependent and an...Ch. 4 - Give examples of industries that are affected by...Ch. 4 - Give examples of industries in which demand...Ch. 4 - Prob. 21DQCh. 4 - The following gives the number of pints of type B...Ch. 4 - 4.2 a. Plot the above data on a graph. Do you...Ch. 4 - Refer to Problem 4.2. Develop a forecast for years...Ch. 4 - A check-processing center uses exponential...Ch. 4 - The Carbondale Hospital is considering the...Ch. 4 - The monthly sales for Yazici Batteries, Inc., were...Ch. 4 - The actual demand for the patients at Omaha...Ch. 4 - Daily high temperatures in St. Louis for the last...Ch. 4 - Lenovo uses the ZX-81 chip in some of its laptop...Ch. 4 - Data collected on the yearly registrations for a...Ch. 4 - Use exponential smoothing with a smoothing...Ch. 4 - Consider the following actual and forecast demand...Ch. 4 - As you can see in the following table, demand for...Ch. 4 - Following are two weekly forecasts made by two...Ch. 4 - Refer to Solved Problem 4.1 on page 138. a. Use a...Ch. 4 - Solved example 4.1 Sales of Volkswagens popular...Ch. 4 - Refer to Solved Problem 4.1. Using smoothing...Ch. 4 - Consider the following actual (At) and forecast...Ch. 4 - Income at the architectural firm Spraggins and...Ch. 4 - Question 4.20 Resolve Problem 4.19 with =.1 and ...Ch. 4 - Question 4.21 Refer to the trend-adjusted...Ch. 4 - Question 4.22 Refer to Problem 4.21. Complete the...Ch. 4 - Question 4.23 Sales of quilt covers at Bud Baniss...Ch. 4 - Question 4.24 Mark Gershon, owner of a musical...Ch. 4 - Question 4.25 The following gives the number of...Ch. 4 - Prob. 26PCh. 4 - Question 4.27 George Kyparisis owns a company...Ch. 4 - Question 4.28 Attendance at Orlandos newest...Ch. 4 - Question 4.29 North Dakota Electric Company...Ch. 4 - Lori Cook has developed the following forecasting...Ch. 4 - Prob. 31PCh. 4 - Question 4.32 The following data relate the sales...Ch. 4 - Question 4.33 The number of internal disk drives...Ch. 4 - Question 4.34 The number of auto accidents in...Ch. 4 - Question 4.35 Rhonda Clark, a Slippery Rock,...Ch. 4 - Accountants at the Tucson firm, Larry Youdelman,...Ch. 4 - Sales of tablet computers at Ted Glickmans...Ch. 4 - Question 4.38 City government has collected the...Ch. 4 - Dr. Lillian Fok, a New Orleans psychologist,...Ch. 4 - Using the data in Problem 4.39, apply linear...Ch. 4 - Bus and subway ridership for the summer months in...Ch. 4 - CEO John Goodale, at Southern Illinois Power and...Ch. 4 - Emergency calls to the 911 system of Durham, North...Ch. 4 - Using the 911 call data in Problem 4.43, forecast...Ch. 4 - The following are monthly actual and forecast...Ch. 4 - Thirteen students entered the business program at...Ch. 4 - Question 4.47 Storrs Cycles has just started...Ch. 4 - Question 4.48 Dave Fletcher, the general manager...Ch. 4 - Question 4.49 Boulanger Savings and Loan is proud...Ch. 4 - Case study Southwestern University: (B) This...Ch. 4 - Case study Southwestern University: (B) This...Ch. 4 - Southwestern University: (B) This integrated case...Ch. 4 - For its first 2 decades of existence, the NBAs...Ch. 4 - For its first 2 decades of existence, the NBAs...Ch. 4 - For its first 2 decades of existence, the NBAs...Ch. 4 - For its first 2 decades of existence, the NBAs...Ch. 4 - Forecasting at Hard Rock Cafe Video Case With the...Ch. 4 - Forecasting at Hard Rock Cafe Video Case With the...Ch. 4 - Forecasting at Hard Rock Cafe Video Case With the...Ch. 4 - Forecasting at Hard Rock Cafe Video Case With the...Ch. 4 - Forecasting at Hard Rock Cafe Video Case With the...
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