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ICBB Exam Dumps - IASSC Lean Six Sigma Black Belt Questions and Answers

Question # 14

Control Charts were developed by Dr. Shewhart to track data over time. To detect Special Cause variation the Control Charts use which of these?

Options:

A.

Data shift analysis

B.

Outlier analysis methods

C.

Center Line and Control Limits

D.

None of the above

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Question # 15

All the data points that represent the total set of information of interest is called the ________________ .

Options:

A.

Population

B.

Sample

C.

Frame

D.

Spread

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Question # 16

Fractional Factorial designs are used to reduce the ____________ because the number of runs has been lowered.

Options:

A.

Time and cost of experiments

B.

Number of people involved

C.

Number of data measurement points

D.

Output summary

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Question # 17

A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $3,800 in order to stay within budget. Using a sample of 38 first article components, a Mean of the new product upgrade price of $3,680, and a Standard Deviation of $120 was estimated. In order to increase the Long Term Z value to 5, what is the maximum long term variation in pricing the Belt can accept for his upgraded critical raw material component?

Options:

A.

$6

B.

$12

C.

$24

D.

$48

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Question # 18

When one speaks of 20% of something contributing 80% of the affect they are referring to what is known as the _________________.

Options:

A.

Shewhart Example

B.

Pareto Principle

C.

Balance Equation

D.

Connection Principle

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Question # 19

A Belt working in a supply chain environment has to make a decision to change suppliers of critical raw materials for a new product upgrade. The purchasing manager is depending on the Belt’s effort requiring that the average cost of an internal critical raw material component be less than or equal to $4,200 in order to stay within budget. Using a sample of 35 first article components, a Mean of the new product upgrade price of $4,060, and a Standard Deviation of $98 was estimated. Select the answer that best states the Practical Problem.

Options:

A.

If the average cost per component is $4,200 or less, then the purchase manager will introduce the new product upgrade with new components.

B.

If the average cost per component is greater than $4,200, then the purchase manager will introduce the new product upgrade with new components.

C.

Only if the average cost per product upgrade is $4,060, will the purchase manager introduce new product upgrades with new components.

D.

If the average cost per new product upgrade is less than $180, then the purchase manager will introduce the new product upgrade with new components.

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Question # 20

Kanban establishes a means of monitoring production, conveyance and delivery information such that efficient flow is established. The method used by Kanban is to require a _________ before anything moves.

Options:

A.

Sign-off

B.

Signal

C.

Bell to ring

D.

Work order

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Question # 21

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

Options:

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

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Question # 22

Which of these are examples of business metrics or Key Performance Indicators commonly referred to as KPI’s?

Options:

A.

Cycle Time

B.

Defects

C.

No. of Units Reworked

D.

Labor Hours

E.

All of these answers are correct

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Question # 23

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).

Options:

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”

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Exam Code: ICBB
Exam Name: IASSC Lean Six Sigma - Black Belt
Last Update: Apr 2, 2025
Questions: 300
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