Which of the following is true in regards to blocking? Select one: a. Blocks per

Question

Which of the following is true in regards to blocking?

Select one:

a. Blocks permit full randomization of runs

b. The experiment is a subdivision of the block

c. A block is a dummy factor which doesn't interact with real factors

d. A blocking factor has two levels

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A designed experiment of three factors (A, B, C) at two levels was conducted. The eight runs were analyzed, suggesting that one level of factor A showed significant improvement. The plant manager stated that no additional runs were needed. The best response to this statement is:

Select one:

a. The experiment did its job and should be closed

b. Additional replications are needed to verify the experiment

c. The results of the test should be implemented immediately

d. An EVOP should be conducted to improve the process further

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A relational matrix is a problem-solving tool which helps to:

Select one:

a. Determine where nonconforming parts exist

b. Show cause-and-effect relationships between input and output variables

c. Focus attention on problems in priority order

d. Generate a large number of improvement ideas

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Assuming no interactions, the main effects analysis of a one-half fractional factorial experiment compared to a comparable full factorial experiment yields which of the following outcomes?

Select one:

a. Only the full factorial is accurate

b. The one-half factorial gives one-half of the final outcome

c. Both can be calculated but computer software is required

d. Both results are approximately the same

Explanation / Answer

Que 1

Answer should be

c. A block is a dummy factor which doesn't interact with real factors

because Blocking is used to compensate when production processes restrict randomization of runs.

Que 2

Answer should be

b. Additional replications are needed to verify the experiment

because Experimental budgets should be sufficient to allow for additional runs.

Que 3

Answer should be

b. Show cause-and-effect relationships between input and output variables

because B= pareto diagram
c= brainstorming
d= inspection

Que 4

Answer should be

d. Both results are approximately the same

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