Case study
Course Lean Six Sigma Green Belt (May 2013 - Sullivan)
Test Week 6 Case Study Quiz Part A
Started 6/10/13 10:17 PM
Submitted 6/10/13 10:18 PM
Status Completed
Attempt Score 12 out of 12 points
Time Elapsed 0 minute.
Instructions
Question 1
3 out of 3 points Setting up histogram in QI Macros:
- Change the lower spec limit to 0, and your upper spec limit is 60
- Use the default for all other values
The process is centered.
Answer
Selected Answer: False
Question 2
3 out of 3 points Setting up histogram in QI Macros:
- Change the lower spec limit to 0, and your upper spec limit is 60
- Use the default for all other values
The process (the bars of the histogram) fits within the specification limits.
Answer
Selected Answer: False
Question 3
3 out of 3 points What is the CpK value and what does it tell you about the process?
Answer
Selected Answer:
CpK is -0.25 and the process is not capable.
Question 4
3 out of 3 points
Use the Six Sigma Worksheet (found in the Tools and Templates Folder of the LSS Green Belt online learning environment) to calculate the sigma value for the current process. You will use the same data spreadsheet we used to create the histogram.
Hint: Use all of the data from both columns. A defect is any value greater than 60. There are 88 total data points/opportunities and there is only one opportunity for a defect per unit (over the timeframe or within the timeframe).
We covered the calculating of sigma values in Week 5.
Reference: Chapter 35; pg. 23.
Answer
Selected Answer:
The sigma value is .79 sigma
Test Week 6 Case Study Quiz Part A
Started 6/10/13 10:17 PM
Submitted 6/10/13 10:18 PM
Status Completed
Attempt Score 12 out of 12 points
Time Elapsed 0 minute.
Instructions
Question 1
3 out of 3 points Setting up histogram in QI Macros:
- Change the lower spec limit to 0, and your upper spec limit is 60
- Use the default for all other values
The process is centered.
Answer
Selected Answer: False
Question 2
3 out of 3 points Setting up histogram in QI Macros:
- Change the lower spec limit to 0, and your upper spec limit is 60
- Use the default for all other values
The process (the bars of the histogram) fits within the specification limits.
Answer
Selected Answer: False
Question 3
3 out of 3 points What is the CpK value and what does it tell you about the process?
Answer
Selected Answer:
CpK is -0.25 and the process is not capable.
Question 4
3 out of 3 points
Use the Six Sigma Worksheet (found in the Tools and Templates Folder of the LSS Green Belt online learning environment) to calculate the sigma value for the current process. You will use the same data spreadsheet we used to create the histogram.
Hint: Use all of the data from both columns. A defect is any value greater than 60. There are 88 total data points/opportunities and there is only one opportunity for a defect per unit (over the timeframe or within the timeframe).
We covered the calculating of sigma values in Week 5.
Reference: Chapter 35; pg. 23.
Answer
Selected Answer:
The sigma value is .79 sigma