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Case: Performance Lawn Equipment

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Elizabeth Burke wants some detailed statistical information about much of the data in the PLE database. In particular, she wants to know the following: (Use attached excel to show solution data for the below questions is in the attached excel.)
a. the mean satisfaction ratings and standard deviations by year and region in the worksheets Dealer Satisfaction and End-User Satisfaction (use attached excel to show solution)
b. a descriptive statistical summary for the 2012 customer survey data (use attached excel to show solution)
c. how the response times differ in each quarter of the worksheet Response Time (use attached excel to show solution)
d. how defects after delivery (worksheet Defects after Delivery) have changed over these 5 years (use attached excel to show solution)
e. how sales of mowers and tractors compare with industry totals and how strongly monthly product sales are correlated with industry sales
F. Perform these analyses and summarize your results in a written report to Ms. Burke. Report must be concise and detailed at least two pages with relevant information from the above questions.

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Solution Summary

Using the report information, statistical information about the example company are found and explained.

Solution Preview

From the data available in PLE (Performance Lawn Equipment) database we have multiple data sheets. However, to serve the purpose of this report we will be focusing on few of the data sheets such as Dealer Satisfaction and End-User Satisfaction, 2014 customer survey data, Response Time, Defects after Delivery, Tractor Unit Sales, Mower Unit Sales, Industry Tractor Total Sales, and Industry Mower Total Sales.

From "Dealer Satisfaction" results, we have observed that over a period of time the average dealer satisfaction rate is increasing i.e. for North America region the mean dealer satisfaction score for year 2010 is 3.78, for year 2011 is 3.92, for year 2012 is 3.97, for year 2013 is 4.11 and for year 2014 is 4.112.

From "End-User Satisfaction" results, we have observed the same as we had observed for "Dealer Satisfaction" i.e. over a period of time the average end-user satisfaction rate is increasing i.e. for North America region the mean end-user satisfaction score for year 2010 is 3.98, for year 2011 is 4.04, for year 2012 is 4.04, for year 2013 is 4.17 and ...

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