A regional retail corporate team is contemplating a decision to purchase an automated  customer service system. The mean cost of a phone call handled by an automated menu  customer service system is $0.75 while the mean cost of a phone call passed onto a “live”  operator is $7.00. However, empirical data show that as more and more companies have  implemented automated systems, customer annoyance with such systems has grown  substantially. Many customers are quick to leave the automated system when given an  option. According to the Center for Marketing Research, 40% of all callers to automated  customer service systems automatically opt to go to a live operator when given a chance.    What if the number of debilitating network viruses detected in a day at the firewalls of  an Internet Service Provider within a certain geographic region is fueling a possible  management decision to upgrade the detection system. The decision will be based on the  results of the following data analysis. The mean number of network viruses detected in a  day is 3.0. What is the probability that in any given day:  e. Zero network viruses will be detected?  f. Exactly one network virus will be detected?  g. Two or more network viruses will be detected?  h. Fewer than three network viruses will be detected?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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A regional retail corporate team is contemplating a decision to purchase an automated 
customer service system. The mean cost of a phone call handled by an automated menu 
customer service system is $0.75 while the mean cost of a phone call passed onto a “live” 
operator is $7.00. However, empirical data show that as more and more companies have 
implemented automated systems, customer annoyance with such systems has grown 
substantially. Many customers are quick to leave the automated system when given an 
option. According to the Center for Marketing Research, 40% of all callers to automated 
customer service systems automatically opt to go to a live operator when given a chance.

 

 What if the number of debilitating network viruses detected in a day at the firewalls of 
an Internet Service Provider within a certain geographic region is fueling a possible 
management decision to upgrade the detection system. The decision will be based on the 
results of the following data analysis. The mean number of network viruses detected in a 
day is 3.0. What is the probability that in any given day: 
e. Zero network viruses will be detected? 
f. Exactly one network virus will be detected? 
g. Two or more network viruses will be detected? 
h. Fewer than three network viruses will be detected? 

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