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Question 1
Single choice

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

Question 2
Single choice

Relative to a Design of Experiments the term ________________ refers to variables being a linear combination of each other.

A.

Mirror Image

B.

Directly Parallel

C.

Collinear

D.

None of the above

Question 3
Single choice

Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperature exceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots per day were sold with a Standard Deviation of 0.7 pots.
For the sales accomplished above, what test would validate if they met their requirements?

A.

F Test

B.

Test for Equal Variance

C.

Chi Square Test

D.

One-Sample t-Test

Question 4
Single choice

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

A.

Data shift analysis

B.

Outlier analysis methods

C.

Center Line and Control Limits

D.

None of the above

Question 5
Multiple choice

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

A.

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

B.

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

C.

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

D.

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

Question 6
Single choice

Sally and Sara sell flower pots at their garage sale. Sally motivates Sara mentioning that they will sell a minimum of 15 pots per day if the outside temperature exceeds 60o F. From a sample, whose population is assumed to follow a Normal Distribution, taken for 30 days at 60 degrees or more an average of 13.6 pots per day were sold with a Standard Deviation of 0.7 pots.
The statistical Degrees of Freedom for this example are?

A.

1

B.

29

C.

30

D.

31

E.

2

Question 7
Single choice

One of the foundations of Lean Six Sigma is the concept that the output of a process (Y) is influenced by the process inputs (X's) and is commonly shown as which formula?

A.

Y = Z(X2)

B.

Y = f(X3)

C.

Y = f(Xn)

D.

Y = g(X+ 1.5)

Question 8
Single choice

Data that can be measured on a continuum and has meaningful decimal subdivisions are __________ data.

A.

Continuous

B.

Surplus

C.

Discrete

D.

Variable

Question 9
Single choice

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

A.

True

B.

False

Question 10
Multiple choice

SPC Charts are used extensively in different business and decision-making environments. In this example a vendor is being selected based on speed of delivery. Which of the conclusions would help you pick a vendor for your needs regarding lead-time of delivery from your vendors? (Note: There are 4 correct answers).

A.

Vendor A with a much shorter lead time in delivery

B.

Vendor B as it has a better consistency (lower variance) on lead time

C.

Vendor B as Vendor A shows a situation out of control as shown in red

D.

Vendor B as the Control Limits are much narrower than Vendor A

E.

Vendor B with higher lead time, but a process with much narrower Control Limits

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