1.20 In the article "Accelerating Improvement" published in Quality Progress, Gaudard, Coates, and Freeman describe a restaurant that caters to business travelers and has a self-service breakfast...

1.20 In the article "Accelerating Improvement" published in Quality Progress, Gaudard, Coates, and Freeman describe a restaurant that caters to business travelers and has a self-service breakfast buffet. Interested in customer satisfaction, the manager conducts a survey over a three-week period and finds that the main customer complaint is having to wait too long to be seated. On each day from September 11 to October 1, a problem-solving team records the percentage of patrons who must wait more than one minute to be seated. A runs plot of the daily percentages is shown in Figure 1.5)6 What does the runs plot tell us about how to improve the waiting time situation?


Complete the following problems from the textbook and submit all work in a Word file. You may copy and paste Excel files as a picture into the Word document (see tutorials in chapter appendices). MegaStat is an optional, but recommended, Excel add-on that simplifies statistical analysis in Excel. It is available to download for a fee at the MegaStat website (http://highered.mcgraw-hill.com/sites/0077425995/information_center_view0/). Please note that MegaStat works with all recent versions of Excel, including Excel 2007 and Excel 2010, but for Mac is only currently compatible with Excel for Mac 2011.