Expert answer:MAt510 Homework Assignment 8

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Expert answer: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: TreadmillExercise Bike Total sold 185123 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: Please show your work
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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:
Please show your work
…
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