Dr. A: The new influenza vaccine is useless at best and : GMAT Critical Reasoning (CR)
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# Dr. A: The new influenza vaccine is useless at best and

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Dr. A: The new influenza vaccine is useless at best and [#permalink]

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10 Dec 2009, 13:17
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14. Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.
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Re: Tough CR. PLz look into this one? [#permalink]

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10 Dec 2009, 13:24
this one's really tough. I'll go with C, looks like a cause and effect type reasoning.
X is true because Y is true (assumption).
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10 Dec 2009, 14:02
IMO B, whats the OA, really tuf one...
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Re: Tough CR. PLz look into this one? [#permalink]

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10 Dec 2009, 17:47
I will go with B

There are 3 parts to the question :- A does not want to buy something , B recommends , A thinks recommendation is faulty and does not want to buy

(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk. - fits nicely in the context
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Re: Tough CR. PLz look into this one? [#permalink]

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12 Dec 2009, 10:15
I think C.
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12 Dec 2009, 14:53
IMO B.
Dr A does not believe in journal but but his own opinion, and same thing is in choice B
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13 Dec 2009, 06:55
C sounds better because a judgement is made first and then the judgement is used
to invalidate the proofs when it shoud be the other way around
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15 Dec 2009, 22:03
C for me too (have seen this before)..

circular reasoning..
"it is good". why? "coz it is good"
same for the dr. "vaccine is worthless". but studies rated otherwise. "studies are b.s. coz vaccine is useless"

Here is another example of fallacy on similar lines (brought a smile as I was imagining my b-school reference):
Interviewer: "Your resume looks impressive but I need another reference."
Bill: "Jill can give me a good reference."
Interviewer: "Good. But how do I know that Jill is trustworthy?"
Bill: "Certainly. I can vouch for her."
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Re: Tough CR. PLz look into this one? [#permalink]

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16 Dec 2009, 18:56
B looks better choice explaining similar cause and effect relationship
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16 Dec 2009, 21:20
ichha148 wrote:
I will go with B

There are 3 parts to the question :- A does not want to buy something , B recommends , A thinks recommendation is faulty and does not want to buy

(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk. - fits nicely in the context

I agree with ichha148. It is reasoned in this way. I will go with B.
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Re: Tough CR. PLz look into this one? [#permalink]

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31 Dec 2009, 01:58
papillon86 wrote:
14. Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

Really difficult. What's the OA?
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Re: Tough CR. PLz look into this one? [#permalink]

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02 Jan 2010, 12:36
papillon86 wrote:
14. Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

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03 Jan 2010, 02:16
IMO c, OA pls
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03 Jan 2010, 04:24
I'll go with B
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03 Jan 2010, 18:57
I have no clue, what is OA, and is it from OG ?
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04 Jan 2010, 08:57
Another C. OA pls
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06 Jan 2010, 08:24
B for me.
Please post the OA...
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06 Jan 2010, 13:06
Even i would go for B

@papiilon can you please post the OA?
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06 Jan 2010, 15:38
I will go with C. OA please?
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11 Jan 2010, 03:40
One more vote for C.
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Re: Tough CR. PLz look into this one?   [#permalink] 11 Jan 2010, 03:40

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# Dr. A: The new influenza vaccine is useless at best and

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