Case Study: Understanding Process Measurement Variation
nbbyaei
CaseStudy1_ExamplePPT.pptxCase Study One
Your Name
CASE STUDY Statement
Method 1 and Method 2 Comparison
Add your Excel data calculations (mean and standard deviation) for both methods
Compare and contrast: Analyze your data from the two methods in relation to the mean (average) and the standard deviation. You may want to create a run chart for both data.
How the average compares?
How the standard deviation compares?
What can you conclude?
Note: The higher the standard deviation the more variation exist.
| Method 1 - Yardstick | Method 2 -Tape Measure | |||
| Observation | Measurement | Observation | Measurement | |
| 1 | 6.42 | 1 | 6.00 | |
| 2 | 5.67 | 2 | 6.00 | |
| 3 | 5.67 | 3 | 6.08 | |
| 4 | 5.75 | 4 | 6.42 | |
| 5 | 5.33 | 5 | 6.00 | |
| 6 | 6.42 | 6 | 6.00 | |
| 7 | 6.00 | 7 | 5.92 | |
| 8 | 6.08 | 8 | 6.08 | |
| 9 | 6.42 | 9 | 6.00 | |
| 10 | 6.17 | 10 | 6.08 | |
| 11 | 6.42 | 11 | 6.08 | |
| 12 | 6.00 | 12 | 5.83 | |
| 13 | 5.83 | 13 | 6.42 | |
| 14 | 6.00 | 14 | 6.00 | |
| 15 | 6.00 | 15 | 6.00 | |
| 16 | 6.50 | 16 | 6.08 | |
| 17 | 6.00 | 17 | 6.42 | |
| 18 | 5.83 | 18 | 6.00 | |
| 19 | 5.92 | 19 | 6.00 | |
| 20 | 5.75 | 20 | 6.08 | |
| Calculate | Calculate | |||
| Average | 6.01 | Average | 6.08 | |
| Standard Deviation | 0.31 | Standard Deviation | 0.16 |
Method 1 and Method 2 Comparison Cont…
Add your Excel data calculations (mean and standard deviation) for both methods
Compare and contrast: Analyze your data from the two methods in relation to the mean (average) and the standard deviation. You may want to create a run chart for both data.
How the average compares?
How the standard deviation compares?
What can you conclude?
Note: The higher the standard deviation the more variation exist.
Methods 1 and 2 Flowchart
A flowchart represents the process steps. Hypothetically assume what are the steps a person follows to measure an entrance door to create your unique diagram.
Example:
1. Prepare tools
2. Learn the use of the tools
Prepare tools
Learn the use of the tools
Ready for measurement
Collect Data
Yes
No
Revise
Analyze the flowchart: Does it has too many steps? Do you see too much variation? Can you eliminate unnecessary steps? Are opportunities for improvement caused by special or common causes?
Methods 1 and 2 SIPOC
Create a Supplier-Input-Process-Outputs-Customers diagram for the methods. State common causes of variations and speculate possible special causes of variations. Identify OFI’s (Opportunity for Improvements). Are the opportunity for improvements due to common or special causes?
Example of a SIPOC Diagram:
Discuss the Feelings of the two groups
If you were applying both methods using two groups of participants as the case study requires. Speculate about what could be the feedback from each group. For example, were the participants comfortable using the tools? What tool was the best to use and why? Were participants able to read the measurement accurately or not? Are the comments from the group important for you to make a decision?
Conclusion: Speculate what method is more accurate and precise
If you are the owner of the business offering the service to your loyal customers, use the data analysis from the previous slides to speculate what tool would you use based on precision and accuracy. Support your decision using external resources by researching Strayer library. Remember to paraphrase and cite your sources using Strayer Writing Standards.
References
Add two references, one could be the textbook and the second an external article from Strayer Library.
Only scholarly references are accepted: No Wikipedia, blogs, websites or other sources that are not reliable to support your discussion.
