Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Chapter 5, Problem 38AP
a
Summary Introduction
Interpretation:Current values of mean and the MAD of monthly demand is to be determined.
Concept Introduction:
Exponential smoothing is used to recursively update the estimates of the mean and standard deviation of demand. The standard deviation is estimated using the mean absolute deviation (MAD).
b
Summary Introduction
Interpretation:Current values of mean and standard deviation of lead time demand are to be determined.
Concept Introduction:
Exponential smoothing is used to recursively update the estimates of the mean and standard deviation of demand. The standard deviation is estimated using the mean absolute deviation (MAD).
c
Summary Introduction
Interpretation:Current values of mean and standard deviation of lead time demand when ordered from Japan are to be determined.
Concept Introduction:
Exponential smoothing is used to recursively update the estimates of the mean and standard deviation of demand. The standard deviation is estimated using the mean absolute deviation (MAD).
d
Summary Introduction
Interpretation:Value of reorder is to be determined.
Concept Introduction:
Exponential smoothing is used to recursively update the estimates of the mean and standard deviation of demand. The standard deviation is estimated using the mean absolute deviation (MAD).
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Students have asked these similar questions
Sales of tablet computers at Marika Gonzalez's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below:
Week
1
2
3
4
5
6
7
8
9
10
Demand 21 21
27
38 25
30 35
24 25
30
a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.50 and a week 1 initial forecast of 21.0 are (round your responses to two decimal places):
Week
1
2
3
4
5
6
7
8
9
10
Demand 21
21
27
38 25
30
35
24 25 30
Forecast 21.0 21
21
24 31
28
29
32 28 26.50
b) For the forecast developed using exponential smoothing (a = 0.50 and initial forecast 21.0), the MAD = |||||sales (round your response to two decimal places).
Sales of tablet computers at Marika Gonzalez's electronics store in Washington, D.C., over the past 10 weeks are shown in the table below:
Week
Demand
1
2
3
4
5
6
7
8
9
10
21
21
27
38
25
30
35 24 25
30
a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.50 and a week 1 initial forecast of 21.0 are (round your responses to two decimal places):
Week
1
2
3
4
5
Demand 21 21
27 38
Forecast 21.0
☐ G
☐
☐
6
7
25 30 35
∞ ☐
8
9
10
24
25
30
Each machine costs $3 Million. Building the room with all its attendant safety protection and other ancillary costs increases the spending by an additional $2.0 million dollars per MRI suite. Each machine can perform 2000 scans per year.
Each reading of an MRI scan by a radiologist, along with other per-scan-related costs, is $500 per scan.
The machine will last five years.
Don’t worry about discount rates for this problem
Graph the total costs over 5 years as a function of sales for 0-3000 patients annually. Hint: you may need to add a second MRI at some point.
Suppose that you want to make a profit of $500 per scan at a target volume of 1000 patients per year, and you purchase only one machine. Superimpose the total revenue curve on top of the total cost curve in (1).
Chapter 5 Solutions
Production and Operations Analysis, Seventh Edition
Ch. 5.2 - Prob. 1PCh. 5.2 - Prob. 2PCh. 5.2 - Prob. 4PCh. 5.3 - Prob. 7PCh. 5.3 - Prob. 9PCh. 5.3 - Prob. 12PCh. 5.5 - Prob. 16PCh. 5.5 - Prob. 18PCh. 5.6 - Prob. 21PCh. 5.7 - Prob. 24P
Ch. 5.7 - Prob. 25PCh. 5.7 - Prob. 26PCh. 5.7 - Prob. 27PCh. 5 - Prob. 28APCh. 5 - Prob. 31APCh. 5 - Prob. 32APCh. 5 - Prob. 33APCh. 5 - Prob. 37APCh. 5 - Prob. 38APCh. 5 - Prob. 40APCh. 5 - Prob. 41APCh. 5 - Prob. 43APCh. 5 - Prob. 44APCh. 5 - Prob. 45APCh. 5 - Prob. 46APCh. 5 - Prob. 47APCh. 5 - Prob. 48APCh. 5 - Prob. 49APCh. 5 - Prob. 50APCh. 5 - Prob. 51AP
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