Six Sigma and Process Improvement

Six Sigma and Process Improvement – Week 6 Assignment

Problem Solving

For this week, work and compute problems 1 and 2 from chapter 7. You MUST show the work and interpret the results. The work MUST be submitted in Microsoft Word or Excel.

Note: Data sets for assigned problems for this are available in the Excel workbook Ch07Data.xlsx. Click on the appropriate worksheet tab as noted in the problem (for example, Prob07-01) to access the data. The Excel templates for control charts used in this chapter are also available in a separate folder on the website.

Problem 1

River Bottom Fire Department is evaluating their response times in order to determine whether a new fire station is needed. Samples were taken for 30 random days from 6 stations. These data can be found in the worksheet Prob07-01 in the Ch07Data.xlsx file.

a. Using Microsoft Excel® or similar software with statistical capability, construct a histogram for these 180 individual readings.

b. Construct a run chart for the sample means

c. Interpret what the data show. Does the process appear to be in control?

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