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Exam 13: Experimental Design

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Question 1

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The process of selectively upgrading components to eliminate excessive variation is called:

A) tolerance design
B) parameter design
C) Taguchi array
D) syatem design

E) A) and B)
F) None of the above

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Question 2

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The primary goal(s) of a designed experiment are(is) to:

A) determine the variable(s) and their(its) magnitude that influences the process
B) determine the levels for these variable(s)
C) determine the appropriate diagram
D) a and b

E) A) and B)
F) B) and C)

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Question 3

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A simple method of working with interactions is:

Using inferior-grade, low cost components, and raw materials in the design process is referred to as:

Taguchi's loss function:

Predict the outcome of the confirmation run for a four factor larger-the-better experiment with an overall average of 18 for the data below: $\begin{array} { | l | c | c | c | c | } \hline & \text { A } & \text { B } & \text { C } & \text { D } \\\hline \text { Level 1 } & 20 & 15 & 25 & 18 \\\hline \text { Level 2 } & 10 & 13 & 19 & 14 \\\hline\end{array}$

Given three two-level factors and two suspected interactions, determine the degrees of freedom and the OA?

A new process is developed to reduce the number of defects. Three tests are made with results of 2, 4, and 1 defects. Determine the S/N and compare with a dB value for the existing process of -1.356.

Given the following ANOVA determine the percent contribution at the 0.05 level for F table values of 1/2 = 18.5, 1/3 = 10.1, and 1/4 = 7.71. $\begin{array} { | c | c | c | c | c | c | c | } \hline \text { Source } & d f & \text { SS } & & & & \\\hline \mathrm { A } & 1 & 10 & & & & \\\hline \mathrm { B } & 1 & 110 & & & & \\\hline \mathrm { C } & 1 & 175 & & & & \\\hline \mathrm { D } & 1 & 20 & & & & \\\hline \mathrm { E } & 1 & 80 & & & & \\\hline & & & & & & \\\hline & & & & & & \\\hline\end{array}$

A range or band that the true value is presumed to occur is referred to as a(an) :

Six samples of a quality characteristic give an average of 5.0 and a variance of 0.4. If the loss is $8.00 at a characteristic value of 6.0, what is the loss equation for smaller- the-better? What is the average loss?

The t test is used when:

The concept of signal to noise was developed by:

A balanced experiment is efficient-it is called:

Repetition is defined as:

A technique to compare the F value of the factor/level with a F distribution value is called: