Production and Operations Analysis, Seventh Edition
7th Edition
ISBN: 9781478623069
Author: Steven Nahmias, Tava Lennon Olsen
Publisher: Waveland Press, Inc.
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Question
Chapter 2.6, Problem 10P
Summary Introduction
To determine: The evaluation method which is more similar and the reason behind this evaluation method makes more sense in golf than absolute or squared errors.
Introduction:
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The chart below is a summary of the main results of a test data set representing the population observed purchasing a virtual digital assistant. What does the accuracy rate indicate?
Metrics
Metric
Value
Accuracy (#correct)
178
Accuracy (%correct)
85.6
Specificity
0.88219
Sensitivity (Recall)
0.6
Precision
0.82400
F1 Score
0.88213
Success Class
1
Success Probability
0.4
Multiple Choice
85.6% of the population has purchased a virtual assistant.
60% of the observations are correctly classified.
85.6% of the observations are correctly classified.
14.4% of the observations are correctly classified.
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A manufacturer of programmable calculators is attempting to determine a reasonable free-service period for a model it will introduce shortly. The manager of product testing has indicated that the calculators have an expected life of 30 months. Assume product life can be described by an exponential distribution.
T / MTBF
e-T /MTBF
T / MTBF
e-T /MTBF
T / MTBF
e-T /MTBF
0.10
0.9048
2.60
0.0743
5.10
0.0061
0.20
0.8187
2.70
0.0672
5.20
0.0055
0.30
0.7408
2.80
0.0608
5.30
0.0050
0.40
0.6703
2.90
0.0550
5.40
0.0045
0.50
0.6065
3.00
0.0498
5.50
0.0041
0.60
0.5488
3.10
0.0450
5.60
0.0037
0.70
0.4966
3.20
0.0408
5.70
0.0033
0.80
0.4493
3.30
0.0369
5.80
0.0030
0.90
0.4066
3.40
0.0334
5.90
0.0027
1.00
0.3679
3.50
0.0302
6.00
0.0025
1.10
0.3329
3.60
0.0273
6.10
0.0022
1.20
0.3012
3.70
0.0247
6.20
0.0020
1.30
0.2725
3.80
0.0224
6.30
0.0018
1.40
0.2466
3.90
0.0202
6.40
0.0017
1.50
0.2231
4.00
0.0183
6.50
0.0015
1.60
0.2019
4.10
0.0166
6.60
0.0014
1.70
0.1827
4.20…
Arçelik Refrigerator Production Inc. manufactures various types of refrigerators. Currently, it has produced the AA-No Frost type refrigerator and wants to do a research on its market value. The company identified its 6-person expert housewife customer and requested the valuation of the AA-No Frost refrigerator. These customers use a similar type of General Electric refrigerator, and the General Electric refrigerator value is -0.5352 in the valuation of this refrigerator. Values are determined out of 1000. According to this information, what is the value of the AA-No Frost refrigerator? What does it mean when compared to General Electric?
Chapter 2 Solutions
Production and Operations Analysis, Seventh Edition
Ch. 2.4 - Prob. 1PCh. 2.4 - Prob. 2PCh. 2.4 - Prob. 3PCh. 2.4 - Prob. 4PCh. 2.4 - Prob. 5PCh. 2.4 - Prob. 6PCh. 2.4 - Prob. 7PCh. 2.4 - Prob. 8PCh. 2.4 - Prob. 9PCh. 2.6 - Prob. 10P
Ch. 2.6 - Prob. 11PCh. 2.6 - Prob. 12PCh. 2.6 - Prob. 13PCh. 2.6 - Prob. 14PCh. 2.6 - Prob. 15PCh. 2.7 - Prob. 16PCh. 2.7 - Prob. 17PCh. 2.7 - Prob. 18PCh. 2.7 - Prob. 19PCh. 2.7 - Prob. 20PCh. 2.7 - Prob. 21PCh. 2.7 - Prob. 22PCh. 2.7 - Prob. 23PCh. 2.7 - Prob. 24PCh. 2.7 - Prob. 25PCh. 2.7 - Prob. 26PCh. 2.7 - Prob. 27PCh. 2.8 - Prob. 28PCh. 2.8 - Prob. 29PCh. 2.8 - Prob. 30PCh. 2.8 - Prob. 31PCh. 2.8 - Prob. 32PCh. 2.9 - Prob. 33PCh. 2.9 - Prob. 34PCh. 2.9 - Prob. 35PCh. 2.9 - Prob. 36PCh. 2.9 - Prob. 37PCh. 2.10 - Prob. 38PCh. 2.10 - Prob. 42PCh. 2.10 - Prob. 43PCh. 2.10 - Prob. 44PCh. 2.10 - Prob. 45PCh. 2 - Prob. 47APCh. 2 - Prob. 48APCh. 2 - Prob. 49APCh. 2 - Prob. 50APCh. 2 - Prob. 51APCh. 2 - Prob. 52APCh. 2 - Prob. 53APCh. 2 - Prob. 54APCh. 2 - Prob. 55APCh. 2 - Prob. 56APCh. 2 - Prob. 57APCh. 2 - Prob. 58AP
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