Need help? We are here

  • +1 (304) 397-0675

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

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?