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If in an experiment all possible variable pairs sum to zero the design is Orthogonal.

A.

True

B.

False

When a Belt Poka-Yoke’s a defect out of the process entirely then she should track the activity with a robust SPC system on the characteristic of interest in the defect as an early warning system.

A.

True

B.

False

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

D.

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

E.

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

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.

Negative

B.

Positive

C.

Monomial

D.

Single alignment

In a good Measurement System the most variation will be with part-to-part measurements. What should you do if the majority of variation is associated with the Gage R&R assuming the gage is technically capable?

A.

Focus on fixing the Repeatability and Reproducibility of the measurement device

B.

Purchase a new machine

C.

Focus on trimming the Part-to-Part variation

D.

Run another MSA test with the machine

Early in a project a Belt will want to begin to identify and evaluate risk factors for the subject process and will therefore begin building a(n) ______________.

A.

SIPOC

B.

FMEA

C.

Business Case

D.

Team charter

A valid mathematical Regression represents all of the characteristics shown except _________________.

A.

All of the standardized residuals will be within ±3 Standard Deviations

B.

The sum of the residuals is zero

C.

The residuals when plotted follow a Normal Distribution

D.

Most standardized residuals are within ±2 Standard Deviations

E.

The Residual is equal to the difference between the observed and predicted values

Which of these might contribute to similar distributions having Unequal Variance?

A.

Extreme tails

B.

Outliers

C.

Multiple Modes

D.

All of the above

One of the methods of testing a Measurement System is to have at least two people take multiple readings from the same instrument and of the same sample set to judge the Repeatability and Reproducibly. This approach is called a ______________ study.

A.

Correlation Analysis

B.

Gage R & R

C.

Bimodal

D.

Dual Attribute

The Control Limits width varies if the sample size varies for which type of chart?

A.

P Charts

B.

NP Charts

C.

Xbar-R Charts

D.

Time Series Charts