Operations Management
11th Edition
ISBN: 9780132921145
Author: Jay Heizer
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 40P
Using the data in Problem 4.39, apply linear regression to study the relationship between the robbery rate and Dr. Fok’s patient load. If the robbery rate increases to 131.2 in year 11, how many phobic patients will Dr. Fok treat? If the robbery rate drops to 90.6, what is the patient projection?
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Dr. Lillian Fok, a New Orleans psychologist, specializes in treating patients who are agoraphobic (i.e., afraid to leave their homes). The following table indicates how many patients Dr. Fokh
each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same year:
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Number of Patients
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In year 11, if the robbery rate increases to 133.40, using trend analysis, the number of patients Dr. Fok will see = patients (round your response to two decimal places).
In year 11, if the robbery rate decreases to 90.6, using trend analysis, the number of patients Dr. Fok will see =
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A random sample of 10,000 customers was selected over a six month period. The data provides information on their current status with the bank as well as 12 additional attributes describing their demographic and banking information.
what are the key predictors the bank should be aware of with their customers? Examples are included, but not limited to:Are female customers leaving more than males? Is there indication of customer departures associated with specific countries?Is there evidence of salary associated departures?
what is an appropiate marketing strategy to attract and retain long term customers
Dr. Lillian Fok, a New Orleans psychologist, specializes in treating patients who are agoraphobic (e, afraid to leave their homes). The following table indicates how many patients Dr. Fokhas seen
each year for the past 10 years. It also indicates what the robbery rate was in New Orleans during the same year
Year
Number of Patients
Robbery Rate per
1,000 Population
The simple linear regression equation that shows the best relationship between the number of patients and year is (round your responses to three decimal places
where y Dependent Variable and x= Independent Variable
1
2
37 32
58.0 60.6
3
39
73.0
4
41
75.2
5
6
40 56
78.5 89.5
7
58
8
53
57
101.1 94.2 102.2
9
10
61
117.2
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Chapter 4 Solutions
Operations Management
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