# STAT 3010 Lecture 10: Contingency Table of Switch by Provider with the Customers Average Income

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1 Oct 2018
School
Department
Course
Professor
Table 10.1 Contingency Table of Switch by Provider with
the Customers Average Income (n=75)
Switch
No
Yes
Provider
Average
of Income
Average
of Income
Count of
Provider
Average Income
for Cell Phone
Customers based
on Cell Phone
Provider
Total
Frequency
for Cell
Phone
Customers
at each
Different
Provider
AT&T
\$2,667.75
\$2,654.20
8
\$2,664.65
35
Cingular
\$2,439.71
\$2,360.65
10
\$2,413.36
30
Verizon
\$2,571.95
\$1,718.88
2
\$2,401.33
10
Total
Frequency
for Cell
Phone
customers
who are
likely to
switch
20
75
Overall
Average
Income
for
Customers
who are
likely to
Switch
\$2,570.89
\$2,413.89
\$2,529.02
It is interesting to see that the higher the average income is for the customer the less likely the
customer is to switch cell phone providers. The lower the average income is for the customer the
more likely they are to switch providers. Table 10.1 gives a little more insight into Question 9
because it was broken up into eight different income categories and stated if the customers at a
particular cell phone company was willing to switch or not. Table 10.1 shows the average
income more clearly because there is less information to sift through. It helped determine a
customer’s income partly determined if they were going to switch cell phone providers or not.
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