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Because visual inspection cannot reliably distinguish

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Manager
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Because visual inspection cannot reliably distinguish [#permalink] New post 02 Nov 2006, 21:16
00:00
A
B
C
D
E

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(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
Because visual inspection cannot reliably distinguish certain skin discolorations from skin cancers, dermatologists at clinics have needed to perform tests of skin tissue taken from patients. At Westville Hospital, dermatological diagnostic costs were reduced by the purchase of a new imaging machine that diagnoses skin cancer in such cases as reliably as the tissue tests do. Consequently, even though the machine is expensive, a dermatological clinic in Westville is considering buying one to reduce diagnostic costs.

Which of the following would it be most useful for the clinic to establish in order to make its decision?

A. Whether the visits of patients who require diagnosis of skin discolorations tend to be shorter in duration at the clinic than at the hospital
B. Whether the principles on which the machine operates have been known to science for a long time
C. Whether the machine at the clinic would get significantly less heavy use than the machine at the hospital does
D. Whether in certain cases of skin discoloration, visual inspection is sufficient to make a diagnosis of skin cancer
E. Whether hospitals in other parts of the country have purchased such imaging machines
Senior Manager
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 [#permalink] New post 02 Nov 2006, 21:50
looks D to me....
if visual inspection is NOT sufficient to make a diagnosis of skin cancer, then additional test will be needed, which will increase the cost not reduce
Director
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 [#permalink] New post 02 Nov 2006, 21:54
I see C !
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 [#permalink] New post 03 Nov 2006, 00:30
C for me too.

The hospital can reduce cost because of heavy use. For a small clinic, however, it may not be fully used to justify its high price.
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 [#permalink] New post 03 Nov 2006, 16:04
C for me too.

If the clinic uses the machine less frequently than the hospital does :wink: , then buying may not be a good business proposition for the clinic.
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 [#permalink] New post 03 Nov 2006, 18:51
ak_idc wrote:
C for me too.

If the clinic uses the machine less frequently than the hospital does :wink: , then buying may not be a good business proposition for the clinic.


I fell for the trap D :cry:

I can always narrow the answer down to 2 choices, but I have often selected the wrong answer. Does it happen to you guys too? Whats the best way to deal with this?
Director
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 [#permalink] New post 03 Nov 2006, 19:23
I did not like the question.

A, B, D and E are completely irrevelant.
Left with C.
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Re: CR - 17/23 - Skin Discoloration [#permalink] New post 03 Nov 2006, 20:05
choice c.

what's the oa?
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 [#permalink] New post 03 Nov 2006, 21:08
C
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 [#permalink] New post 03 Nov 2006, 21:13
uvs_mba wrote:
ak_idc wrote:
C for me too.

If the clinic uses the machine less frequently than the hospital does :wink: , then buying may not be a good business proposition for the clinic.


I fell for the trap D :cry:

I can always narrow the answer down to 2 choices, but I have often selected the wrong answer. Does it happen to you guys too? Whats the best way to deal with this?


hey Uvs, that happens to everybody. Dont worry abt that :wink: .

Options in GMAT are given in 3:2 ratio. I read some where. In this type of questions we need to be careful abt scope.
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 [#permalink] New post 06 Nov 2006, 23:38
U guys are gr8...I also fell in D trap:)

Now clear about C !
  [#permalink] 06 Nov 2006, 23:38
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