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A factory was trying out a new process for producing one of

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Director
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A factory was trying out a new process for producing one of [#permalink] New post 12 May 2011, 07:35
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

46% (02:18) correct 54% (01:29) wrong based on 14 sessions
A factory was trying out a new process for producing one of its products, with the goal of reducing production
costs. A trial production run using the new process showed a 15 percent reduction in costs compared with past
performance using the standard process. The production managers therefore concluded that the new process
did produce a cost savings.
Which of the following, if true, casts most doubt on the production manager’s conclusion?
(A) In the cost reduction project that eventually led to the trial of the new process, production managers had
initially been seeking cost reductions of 50 percent.
(B) Analysis of the trial of the new process showed that the cost reduction during the trial was entirely
attributable to a reduction in the umber of finished products rejected by quality control.
(C) While the trial was being conducted, production costs at the factory for a similar product, produced without
benefit of the new process, also showed a 15 percent reduction.
(D) Although some of the factory’s managers have been arguing that the product is outdated and ought to be
redesigned, the use of the new production process does not involve any changes in the finished product.
(E) Since the new process differs from the standard process only in the way in which the stage of production are
organized and ordered, the cost of the materials used in the product is the same in both processes

oa after discussion, please post your timing too
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Re: 891 cr [#permalink] New post 12 May 2011, 11:15
IMO "C"

The production managers therefore concluded that the new process did produce a cost savings.

(C) While the trial was being conducted, production costs at the factory for a similar product[highlight], produced without
benefit of the new process[/highlight], also showed a 15 percent reduction.
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Re: 891 cr [#permalink] New post 12 May 2011, 12:53
+1 C

A - Out of scope: The conclusion is about whether the new process helped to reduce the costs.
B - Out of scope: It doesn't matter how the costs were reduced as long as the new process is the main cause.
C - The costs reduction has taken without using the new process. - Correct
Note: Maybe you could say "but it is not the same product; it is something similar". Yes, you are right. But you must remember that a "Weaken question" doesn't have to destroy totally the conclusion; it can harm the question partially. This is the case.
D - Opposite: This choice supports the conclusion. Other possible factors have not changed; therefore, the new process is the main cause of the reduction costs.
E - Same as in D.

I think I deserve kudos. 8-)
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Re: 891 cr [#permalink] New post 12 May 2011, 21:44
Between B and C.

B actually gives reasoning stating how the cost reduction was achiever.Thus affirming that the production technique improved the efficiency.

C compares and clearly creates an element of doubt that there must be some other reason for cost reductions.

C is clean.

time 1:10 sec
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Re: 891 cr [#permalink] New post 12 May 2011, 22:33
hmmm your timing is quite good , i managed this in 1:53 min.

the OA is C
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Re: 891 cr   [#permalink] 12 May 2011, 22:33
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