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Category > Math Posted 27 Feb 2019 My Price 10.00

week 9 quiz Answers

Description

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                  195                           138
Service contracts       60                             45

The store can only sell a service contract on a new piece of equipment. Of the 195 treadmills sold, 60 purchased a service contract. Of the 138 exercise bikes, 45 purchased a service contract.
Remember to watch the instructional video and use the excel template provided to help you with the math.
Complete the following questions in the space provided below:

1.      Is there a major difference between the two pieces of equipment? Why or why not?

2.      Interpret the meaning of the confidence interval for Treadmills at a 95% confidence level.

3.      Interpret the meaning of the confidence interval for Exercise Bikes at a 95% confidence level.

4.      Are confidence intervals one-tailed or two-tailed?

5.      Construct a 95 percent confidence interval for the difference between the proportions of service contracts sold on treadmills versus exercise bikes.

Answers

SmartExpert
(118)
Status NEW Posted 27 Feb 2019 04:02 PM My Price 10.00

wee-----------k 9----------- qu-----------iz -----------Ans-----------wer-----------s -----------

Attachments

file 1551463334-week 9 quiz.docx preview (430 words )
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