Homework Assignment 8
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MAT510HomeworkAssignment8.docx
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MAT 510 – Homework Assignment |
Homework Assignment 8
Due in Week 9 and worth 30 points
Suppose the number of equipment sales and service contracts that a store sold during the last six (6) months for treadmills and exercise bikes was as follows:
Treadmill Exercise Bike
Total sold 185 123
Service contracts 67 55
The store can only sell a service contract on a new piece of equipment. Of the 185 treadmills sold, 67 included a service contract and 118 did not.
Complete the following questions in the space provided below:
1. Construct a 95 percent confidence interval for the difference between the proportions of service contracts sold on treadmills versus exercise bikes.
2. Is there a major difference between the two pieces of equipment? Why or why not?
Type your answers below and submit this file in Week 9 of the online course shell:
MAT 510
–
Homework Assignment
Homework A
ssignment
8
Due in
Week
9 and worth 30 points
Suppose the number of equipment sales and service contracts that a store sold during the last six
(6)
months for treadmills and exercise bikes was as follows:
Treadmill
Exercise Bike
Total sold
185
123
Service contracts
67
55
The store can only sell a service contract on a new piece of equipment. Of the 185 treadmills sold, 67
included a service contract and 118 did not.
Complete the following questions
in the space provided below
:
1.
Construct a 95 percent confidence interv
al for the difference between the proportions of
service contracts sold on treadmills versus exercise bikes.
2.
Is there a major difference between the two pieces of equipment? Why or why not?
Type your answers below and submit this file
in Week 9 of
the
online course shell:
MAT 510 – Homework Assignment
Homework Assignment 8
Due in Week 9 and worth 30 points
Suppose the number of equipment sales and service contracts that a store sold during the last six (6)
months for treadmills and exercise bikes was as follows:
Treadmill Exercise Bike
Total sold 185 123
Service contracts 67 55
The store can only sell a service contract on a new piece of equipment. Of the 185 treadmills sold, 67
included a service contract and 118 did not.
Complete the following questions in the space provided below:
1. Construct a 95 percent confidence interval for the difference between the proportions of
service contracts sold on treadmills versus exercise bikes.
2. Is there a major difference between the two pieces of equipment? Why or why not?
Type your answers below and submit this file in Week 9 of the online course shell:
