94 Chapter 3 Visualizing and Explo Case: Performance Lawn Equipment Part 1: PLE originally produced lawn mowers, but a significant portion of sales volume over recent years has come from the growing small-tractor market. As we noted in the case in Chapter 1, PLE sells their products worldwide, with sales regions including North America, South America, Europe, and the Pacific Rim. Three years ago a new region was opened to serve China, where a booming market for small tractors has been established. PLE has always empha sized quality and considers the quality it builds into its prod- ucts as its primary selling point. In the past 2 years, PLE has also emphasized the ease of use of their products. Before digging into the details of operations, Elizabeth Burke wants to gain an overview of PLE's overall business performance and market position by examining the infor- mation provided in the database. Specifically, she is asking you to construct appropriate charts for the data in the fol- lowing worksheets and summarize your conclusions from analysis of these charts. a. Dealer Satisfaction b. End-User Satisfaction c. Complaints d. Mower Unit Sales e. Tractor Unit Sales f. On-Time Delivery g. Defects after Delivery h. Response Time