A company is testing machines that construct folding chairs. Some of

Question

A company is testing machines that construct folding chairs. Some of the chairs produced by the machines have faulty alignments that may cause the chairs to collapse. Some of the chairs produced by the machines are constructed with their join-pins attached too loosely, which may also cause the chairs to collapse, unless the pins are tightened. To produce the best chairs in the most efficient manner, the company should use the machine with the lowest proportion of chairs with faulty alignments.

Which of the following, if true, most strengthen the above argument?

A. The company has never produced folding chairs before, and hence has no relevant manufacturing experience.

B. The machine that produced the highest proportion of chairs with faulty alignments produced chairs of higher quality than did the other machines.

C. When planning for the construction and sale of chairs, it is necessary to consider the rate of production.

D. Some machines produce chairs with defects other than faulty alignments or loose join-pins.

E. All of the machines produced the same proportion of chairs with loose pins.

Livelifeloud20 · Answer

Bunuel  Can you post OE ? 
If someone can explain why B cannot be the answer ?

AnirudhaS · Answer

Author's conclusion is -  "To produce the best chairs in the most efficient manner, the company should use the machine with the lowest proportion of chairs with faulty alignments."

So the conclusion talks about which machine makes chairs IN THE MOST EFFICIENT MANNER.

Option B however talks about which machine produced the HIGHER QUALITY chair. This is different from what is stated in the conclusion. Hence, this statement does not strengthens.

Hope this helps.

Pooki · Answer

Answer should be E not B
the stimuli said machines have 2 types of fault: 
1, Faulty alignment 
2, Loose pins
So E say all machine have same rate of loose pins hence pick the machine with lowest rate of faulty alignment will be the best choice=> strengthen the argurment

B wrong bc B state that The machine that produced the highest proportion of chairs with faulty alignments produced chairs of higher quality than did the other machines. This is a trap, we talking about whether the project of picking the machine with lowest rate of alignment best for company. So B is irrelevant 
Hope this help

Livelifeloud20 · Answer

AnirudhaS  and  Pooki  Thank You guys. 
Explanation is helpful.

amangupta96 · Answer

IMO E.

Premise - Faulty chairs produced by machines have faulty alignments or join-pins attached too loosely. 
Conclusion - To produce best chairs in most efficient manner, company should use machine with the lowest proportion of chairs with faulty alignments.
To support the conclusion, we need an option which says all machines produce faulty chairs with loose join-pins in equal proportion so that we would have only one way to produce best chair in most efficient manner which is to use machine with lowest proportion of chairs with faulty alignments. Hence, answer is E.

bot00078 · Answer

Here Between B and E 
IMO B is wrong because we don't find that is there any mentioned about higher quality so by this thing i eliminate B

A company is testing machines that construct folding chairs. Some of

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A company is testing machines that construct folding chairs. Some of

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