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MAT510 WK9 Confidence Interval & Proportions of Service Contracts HW8

MAT510 WK9 Confidence Interval & Proportions of Service Contracts HW8

MAT510 WK9 Confidence Interval & Proportions of Service Contracts HW8

Week 9 Homework Assignment 8 – Submit Here
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:
Construct a 95 percent confidence interval for the difference between the proportions of service contracts sold on treadmills versus exercise bikes.
Is there a major difference between the two pieces of equipment? Why or why not?
Download the homework below, type your answers into the document and submit it using the link located above.
MAT510 Homework Assignment 8.docx

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