GAQM Certified Lean Six Sigma Black Belt (CLSSBB) Exam

Question 1

Which of these items are not parts of what is necessary for successful Kaizens?

A. Management support

B. Operator support

C. Good lighting

D. Analysis tools

Correct Answer: C

Question 2

Common and Special Cause ______________ are the focus of Statistical Process Control.

A. Ideation

B. Variation

C. Capability

D. Prediction

Correct Answer: B

Question 3

For the data set shown here which of these statements is/are true?

A. Hypothesis Testing of Means or Medians cannot be done since there are an unequal number of observations for the 3 samples

B. Grade A has a higher sample Mean than Grade B

C. A Paired T-test would be applicable for comparing Grade B and Grade A since they follow each other in the data set

D. Grade A has the lowest sample Mean of the 3 samples

Correct Answer: D

Question 4

The reported Cpk for a process with an average of 104 units, a spread of 18 units and upper and lower specification limits of 122 and 96 units would be?

A. 0.5

B. 0.89

C. 2.00

D. 1.00

Correct Answer: B

Question 5

When variation is removed from the output of a process then the process customer can have more confidence in the experience that results from the process.

A. True

B. False

Correct Answer: A

Question 6

Range Charts are the technique used to determine if ______________ are occurring within the subgroups of the SPC Charts.

A. Unnatural forces

B. Special Causes

C. Special inspections

D. Common Causes

Correct Answer: B

Question 7

Cost of Poor Quality (COPQ) can be classified as Visible Costs and Hidden Costs. All these items are Hidden Cost except __________________.

A. Late Delivery

B. Returns

C. Lost Customer Loyalty

D. Time Value of Money

Correct Answer: B

Question 8

Which statement(s) are correct about the Pareto Chart shown here for the DOE analysis? (Note: There are 2 correct answers).

A. The effects to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 0.05

B. The factors to keep in the mathematical model with a 5% alpha risk are BE, AB, A and AD

C. The factors to keep in the mathematical model are E, D, DE, BD and B with an alpha risk equal to 2.06

D. It is unknown from this graph how many factors were in the Experimental Design

Correct Answer: A,D

Question 9

What conclusion is most correct about the Experimental Design shown here with the response in the far right column?

A. No factor has enough statistical confidence greater than 95% to have an impact on the response rate

B. Constant, Adv and Bev are the only factors statistically affecting the response rate with 95% confidence or more

C. If the Adv is increased from the low level to the high level, the response rate increases

D. The response level is statistically concluded to only need the Adv and Bev factors set at the low level to get the largest response rate

E. This design does not have enough experimental runs to conclude anything as evidenced by the lack of P-values in the MINITABTM output

Correct Answer: D

Question 10

When a Belt conducts a Linear Correlation Analysis and finds that as an X increases the Y also increase then he has proven a ______________ correlation.

A. Positive

B. Single alignment

C. Negative

D. Monomial

Correct Answer: A

Question 11

Calculate the Rolled Throughput Yield of this process using this data.
Data: unit input: 1215, unit output: 1180, defects repaired: 184, scrap: 42

A. 82.23%

B. 80.85%

C. 81.40%

D. 84.96%

Correct Answer: C

Question 12

Handling of warranty returns, process improvement team meetings and rework to meet customer expectations are all examples of business costs that are classified as ________________ .

A. Unavoidable

B. Non-value Add

C. Nuisance

D. Necessary

Correct Answer: B

Question 13

Contingency Tables are used to test for association, or dependency, between two or more classifications.

A. True

B. False

Correct Answer: A

Question 14

The distance between the Mean of a data set and the Point of Inflection on a Normal curve is called the _______________.

A. Standard Deviation

B. Curve Spread

C. Numerical Average

D. Data Breadth

Correct Answer: A

GAQM Certified Lean Six Sigma Black Belt (CLSSBB) - CLSSBB-001 Exam Practice Test

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