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Question 1

A Six Sigma tool that helps to screen factors by using graphical techniques to logically subgroup multiple discrete X's plotted against a continuous Y is known as a _____________Chart.

ASIPOC

BMulti-Vari

CBox Plot

DWhisker

Answer : B

Question 2

It is a Type II error if we decide to reject the Null Hypothesis when it is actually true.

ATrue

BFalse

Answer : B

Question 3

Non-parametric testing is done when which of these are applicable? (Note: There are 3 correct answers).

AWhen the traditional t tests don't produce the results we need

BA Hypothesis Test for the Median of the population is in question

CIt does not require data to come from Normally Distributed populations

DThey look at the Median rather than the Mean of populations

EWhen there are no parameters to measure in the process

Answer : B, C, D

Question 4

Hypothesis Testing can help avoid high costs of experimental efforts by using existing data.

ATrue

BFalse

Answer : A

Question 5

Unequal Variances can be the result of differing types of distributions.

ATrue

BFalse

Answer : A

Question 6

Which statement(s) are correct for the Regression Analysis shown here? (Note: There are 2 correct answers).

AThis Regression is an example of a Multiple Linear Regression.

BThis Regression is an example of Cubic Regression.

C%Cu explains the majority of the process variance in heat flux.

DThickness explains over 80% of the process variance in heat flux.

EThe number of Residuals in this Regression Analysis is 26.

Answer : A, D

Question 7

Training cost is $4,000 and a project required an initial investment of $30,000. If the project yields monthly savings of $2,000 beginning after 3 months, what is the payback period in months (before money costs and taxes)?

A10

B20

C27

D33

Answer : B

IASSC Certified Lean Six Sigma Green Belt ICGB Exam Questions