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Guidebook writer: I have visited hotels throughout the

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Director
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Guidebook writer: I have visited hotels throughout the [#permalink] New post 22 Apr 2008, 17:20
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A
B
C
D
E

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Guidebook writer: I have visited hotels throughout the country and have noticed that in
those built before 1930 the quality of the original carpentry work is generally superior to
that in hotels built afterward. Clearly carpenters working on hotels before 1930 typically
worked with more skill, care, and effort than carpenters who have worked on hotels built
subsequently.
Which of the following, if true, most seriously weakens the guidebook writer’s
argument?
A. The quality of original carpentry in hotels is generally far superior to the quality
of original carpentry in other structures, such as houses and stores.
B. Hotels built since 1930 can generally accommodate more guests than those built
before 1930.
C. The materials available to carpenters working before 1930 were not significantly
different in quality from the materials available to carpenters working after 1930.
D. The better the quality of original carpentry in a building, the less likely that
building is to fall into disuse and be demolished.
E. The average length of apprenticeship for carpenters has declined significantly
since 1930.
----
This was the second question in my practice test today.(SET23). I know it is easy question.
But I fell for the trap. :roll: Feeling very very bad for my performance.
Director
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Re: CR -hotels [#permalink] New post 22 Apr 2008, 17:49
My opinion C.
Because if the material was same and not different in quality,the argument weakens.Rest all are out of scope.Correct me if i am wrong.Not that good at Cr's. :|
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Re: CR -hotels [#permalink] New post 22 Apr 2008, 18:35
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IN many CR questions, the argument makes a statement based on a comparison of 2 samples. In these situations, we should check for validity of both the samples. Sometimes, the interpretation of the data is correct, but the sample is too limited or contaminated by both whats present and whats not present in the sample.

So, we compare samples of pre-1930 hotels and post-1930 hotels. We find that pre-1930 hotels have better architecture. Does that mean carpenters prior to 1930 worked with more skill and care. Possibly. But, what if there were many hotels built with horrible skill and care. and what if none of those survived due to their bad carpentry. This significantly alters how we look at the sample of pre-1930 hotels and definitely weakens the conclusion made in the argument.

D implies that if the carpentry wasnt good, the hotel would not have survived until now; this is inline with our reasoning above.

So, IMHO D is the answer.
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Re: CR -hotels [#permalink] New post 22 Apr 2008, 19:17
ncprasad wrote:
IN many CR questions, the argument makes a statement based on a comparison of 2 samples. In these situations, we should check for validity of both the samples. Sometimes, the interpretation of the data is correct, but the sample is too limited or contaminated by both whats present and whats not present in the sample.

So, we compare samples of pre-1930 hotels and post-1930 hotels. We find that pre-1930 hotels have better architecture. Does that mean carpenters prior to 1930 worked with more skill and care. Possibly. But, what if there were many hotels built with horrible skill and care. and what if none of those survived due to their bad carpentry. This significantly alters how we look at the sample of pre-1930 hotels and definitely weakens the conclusion made in the argument.

D implies that if the carpentry wasnt good, the hotel would not have survived until now; this is inline with our reasoning above.

So, IMHO D is the answer.


VERY NICE LESSON LEARNED! THANKS
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Re: CR -hotels [#permalink] New post 22 Apr 2008, 22:19
I'd say D.

saravalli wrote:
Guidebook writer: I have visited hotels throughout the country and have noticed that in those built before 1930 the quality of the original carpentry work is generally superior to that in hotels built afterward. Clearly carpenters working on hotels before 1930 typically worked with more skill, care, and effort than carpenters who have worked on hotels built subsequently.

Which of the following, if true, most seriously weakens the guidebook writer’s argument?

A. The quality of original carpentry in hotels is generally far superior to the quality of original carpentry in other structures, such as houses and stores.

B. Hotels built since 1930 can generally accommodate more guests than those built before 1930.

C. The materials available to carpenters working before 1930 were not significantly different in quality from the materials available to carpenters working after 1930.

D. The better the quality of original carpentry in a building, the less likely that building is to fall into disuse and be demolished.

E. The average length of apprenticeship for carpenters has declined significantly since 1930.
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Re: CR -hotels [#permalink] New post 23 Apr 2008, 04:03
Superb explanation nc +1 :good
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Re: CR -hotels [#permalink] New post 23 Apr 2008, 08:29
nc prasad thanks a lot.
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Re: CR -hotels [#permalink] New post 26 Apr 2008, 11:14
Thanks a bunch! OA: D :)
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Re: CR -hotels [#permalink] New post 26 Apr 2008, 14:10
Conclusion: Quality of Carpentry Work in Hotels built before 1930 is superior to that of the Hotels after 1930.

A. The quality of original carpentry in hotels is generally far superior to the quality
of original carpentry in other structures, such as houses and stores. [Other structures other than hotels is irrelevant to the argument – eliminate it]

B. Hotels built since 1930 can generally accommodate more guests than those built
before 1930. [Hotel Capacity is out of scope – eliminate it]

C. The materials available to carpenters working before 1930 were not significantly
different in quality from the materials available to carpenters working after 1930 [Material availability is not relevant” – eliminate it]

D. The better the quality of original carpentry in a building, the less likely that
building is to fall into disuse and be demolished. [Hold it]

E. The average length of apprenticeship for carpenters has declined significantly
since 1930. [ Average Length of apprenticeship is irrelevant – eliminate it]

Answer: D
Re: CR -hotels   [#permalink] 26 Apr 2008, 14:10
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