Question 1

The Mann-Whitney Test is used to test if the Means for two samples are different.

Options :

A : True

B : False

Answer: B

Question 2

For a Normal Distribution the Mean, Median and Mode are the same data point.

Options :

A : True

B : False

Answer: A

Question 3

Fractional Factorial designs for an experimental approach are used when ____________ about the multiple metric interaction in a process.

Options :

A : Much is known

B : Little is known

C : We don't care

D : Data exists

Answer: B

Question 4

The reason(s) for not marking the customer Specification Limits (SL) on a Control Chart is which of these? (Note: There are 4 correct answers).

Options :

A : Process control teams should not control a process based on SLs

B : Displaying the SLs on a Control Chart sends a wrong signal toward process control

C : Marking the SLs on a Control Chart is against the principle of charting

D : By marking the SLs, one can confuse the operator as to what limits are critical

E : By using mere Control Limits the process only needs to be in Statistical Control

Answer: A,B,D

Question 5

Measurement error is defined as the effect of all sources of measurement variability that caused an observed or measured value to deviate from the __________.

Options :

A : Standard Deviation

B : Mean

C : Median

D : True value

Answer: D