File Edit View History Bookmarks Window Help learn, kent edu Data for problems 9-17. of this, the public is about public to a sewer that is in Commissioner of Public Works has authorized a weekly to be conducted of town residents. Each week, a sample of 100 residents is questioned on their feelings towards the The purpose of the survey is to see ifthe public sentiment with respect to this project is stable or not by using a 3-a control chart. The results for the most recent 8 weeks ofsurvey are shown below. No 9. What control chart should be used? a. x-bar chart b. R-chart c. p-chart d. c-chart Sample Tests 10. What is the centerline for this chart? a. 0.09 b. 0.10