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Six Sigma Black Belt
CSSBB
Certified Six Sigma Black Belt Questions and Answers

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Viewing page 5 out of 9 pages

Viewing questions 41-50 out of questions

Questions # 41:

From the variance F-test shown above, which of these conclusions is/are valid?

Question # 41

Options:

The variance between the class score distribution is significantly different

The variance between the class score distribution is not significantly different

This test applies only to Normal Distributed data at 99 % confidence

This test applies only to Non-normal Data at 99 % confidence

There are not enough data points to make any statistical conclusions

Answer

Questions # 42:

A(n) ______________ is best used to compare a Machine 1 average quality characteristic to the same quality characteristic of Machine 2.

Options:

F test

1-Sample t-test

2-Sample t-test

ANOVA test

Answer

Questions # 43:

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

Question # 43

Options:

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

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

Grade A has the lowest sample Mean of the 3 samples

Grade A has a higher sample Mean than Grade B

Answer

Questions # 44:

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

Question # 44

Options:

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

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

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

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

Answer

A, C

Questions # 45:

A valuable tool to use during the Measure Phase to show material and information flow throughout an entire process is the ______________ .

Options:

Value Stream Map

FMEA

Pareto Chart

Standard Operating Procedure

Answer

Questions # 46:

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. The Alternative Hypothesis in the above example is?