MAT 510 Strayer University Margin of Error Homework Assignment 6 Homework Assignment 6
Download and complete Homework Assignment 6 [DOCX].
Suppose the number of equipment sales and service contracts that a store sold during the last six months for treadmills and exercise bikes was as follows:
Equipment Sales and Service Contracts Sold
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?
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