"After some further analysis, River Bottom Fire Department (Problem 22) relocated one of their fire stations. After doing so, they wanted to evaluate response times to determine whether or not the response process was in control. Thirty new samples were taken on consecutive days from the 6 stations. These data can be found in the C08 Problem Data workbook.

a. Compute the mean and range of each sample and calculate control limits for x- and R-charts using the appropriate formulas. Verify your results by using the X bar & R Excel template.

b. From the charts constructed in the Excel template, does the process appear to be in statistical control?"