Difference between common cause and special cause variation

Assignment Help Operation Management

Reference no: EM132270820

Six sigma exam green belt

1. The MA Maintenance department has installed a new system to prevent Work Orders with incorrect information from reaching Maintenance Execution This is an example of:

A. Kanban

B. Poka yoke

C. Visual Factory

D. Standard work

2. Since sample sizes correspond to the amount of change we need to detect, the smaller the alpha (a) and beta (B) risks, the Smaller / larger the sample size must be.

A. Larger

B. Smaller

3. Which of the following is an element of standardized Work

A. Product dimension

B. Take time

C. Product Value

D. Product Cost

4. What is the difference between common cause and special cause variation?

A. Common cause variation is inherent to the Voice of the Process (VoP)

B. Common cause variation always impacts process performance

C. Special cause variation is always present

D. Special cause variation is not important so we must focus on eliminating it

5. The major ranking criteria in a FMEA are:

A. Occurrence, Severity, and Number

B. Severity, Occurrence and Detection

C. Risk, Priority, and action

D. Frequency, Likelihood and correction

6. What would you use the QFD room number 1 for?

A. Describe the relations, the what vs. the how

B. Identify and list the process of metrics

C. List the customer requirements

D. Map the interactions between metrics and customer requirements

7. Poka Yoke is technique to

A. Inspect for a defect

B. Prevent a defect

C. Detect a defect before it reaches customer

D. Correct a defect

8. Continuous data can be assessed in the following way:

A. Center and Spread

B. Mean and Median

C. Variance and Range

D. All of the above

9. In the Control Phase. Control Charts are used for:

A. Monitor and maintain the improved performance

B. Detect the special cause initiation

C. Initiate response plan

D. All of the above

10. The purpose of Control phase is:

A. To make sure bonus is properly calculated

B. To comply with ISO standards

C. To control the operations

D. To monitor the process to ensure sustainability

Reference no: EM132270820

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