A measurement system has sufficient discrimination if:

A. A measurement system should not discriminate

B. The measurement unit is at most one-tenth of the six sigma spread of the total process variation

C. You can get output to the second decimal point

D. If the tool can be easily calibrated

How do you check that a regression model is valid?

A. Residuals are normally distributed

B. Residuals are independent

C. Residuals have constant variation

D. All of the above

The most important process metrics are often determined by what the customer tells us is important to them. Which of these sequences describes the way customer requirements are converted to the customer-based process metrics?

A. Voice of the customer>critical to quality metrics>critical customer requirements

B. Voice of the customer>critical customer requirements>critical to process metrics

C. Critical customer requirements>critical to quality metrics>critical to process metrics

D. Voice of the customer>critical customer requirements>critical to quality metrics

Which of these graphs demonstrates conditions which would be sufficient to enable OCAP for the process?

A. Xbar Chart

B. Time Series Chart

C. Neither

D. Both

Which statement(s) are incorrect about Fractional Factorial Designs?

A. A Half Fractional Design for 5 factors has the same number of experimental runs as a Full Factorial Design for 4 factors assuming no repeats or replicates or Center Points

B. Quarter Fractional experiments can exist for those with 4 factors

C. Resolution V design is desired while controlling costs of experimentation

D. Half Fractional experiments do not exist for those designs with only 2 factors

If a Six Sigma project was to reduce repair station inventory and the team found the inventory was creeping up over time which Lean tools should be considered in the Control Phase to reestablish and sustain the project success?

A. Review the Visual Factory to assure inventory in excess of desired visible

B. Improve the lighting to assure adequate visibility

C. Analyze data from supplier deliveries

D. Reword the standardized work instructions to use active verbs and not passive phrases

When a Belt decides to use written procedures and visual controls to improve the consistency of the tasks that must occur in the process he is improving he has utilized the _________________ activity of 5S.

A. Sustaining

B. Sorting

C. Standardizing

D. Straightening

Using this partial Z Table, how many units from a month's production run are expected to not satisfy customer requirements for the following process? Upper specification limit: 7.2 Lower specification limit:

4.3 Mean of the process: 5.9 Standard Deviation: 0.65 Monthly production: 450 units

A. 3

B. 7

C. 10

D. 12

The Mann-Whitney test is a powerful test and is unique to situations from which of the choices listed? (Note: There are 2 correct answers).

A. Testing the identity of two populations

B. Focuses on equality of the Median of the two populations

C. Less powerful than the traditional "t-test"

D. More widely applicable than the traditional "t-test"

If the results from a Hypothesis Test are located in the "Region of Doubt" area, what can be concluded?

A. Rejection of the Alpha

B. We fail to reject the Null Hypothesis

C. The test was conducted improperly

D. We reject the Null Hypothesis