It is currently 24 Nov 2017, 01:08

Close

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

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

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

8 KUDOS received
Intern
Intern
avatar
Joined: 22 Apr 2008
Posts: 36

Kudos [?]: 74 [8], given: 0

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

Show Tags

New post 25 Jul 2008, 04:12
8
This post received
KUDOS
29
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  95% (hard)

Question Stats:

27% (01:13) correct 73% (01:27) wrong based on 1314 sessions

HideShow timer Statistics

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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks
[Reveal] Spoiler: OA

Kudos [?]: 74 [8], given: 0

17 KUDOS received
Director
Director
User avatar
Joined: 12 Jul 2008
Posts: 514

Kudos [?]: 165 [17], given: 0

Schools: Wharton
Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 10:24
17
This post received
KUDOS
3
This post was
BOOKMARKED
sjgmat wrote:
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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks


Answer is C. The stimulus shows circular reasoning.

A: I think the vaccine is bad.
B: The vaccine is not bad because of these data.
A: The data must be wrong, because the vaccine is bad.

C also shows circular reasoning:
Wingzz tennis balls are the best because they are the best.

Kudos [?]: 165 [17], given: 0

6 KUDOS received
VP
VP
User avatar
Joined: 03 Apr 2007
Posts: 1339

Kudos [?]: 868 [6], given: 10

Reviews Badge
Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 09:51
6
This post received
KUDOS
sjgmat wrote:
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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks


C

Dr A says the vaccine is useless without giving reasons why it is useless.

In C - its stated tennis balls are best without giving reasons

Kudos [?]: 868 [6], given: 10

2 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 26 Jul 2009
Posts: 343

Kudos [?]: 125 [2], given: 32

Re: The new influenza vaccine [#permalink]

Show Tags

New post 18 Aug 2009, 23:37
2
This post received
KUDOS
I go with B.

Recap:

1. Dr. A: The studies must have been faulty because the vaccine is worthless.
2. Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.


"Dr. A believes that the vaccine is useless [belief] therefore he thinks that the studies are faulty [not buy it] " parallels "I dont trust Jerrold [belief], so I wont buy his milk [not buy it]"

Kudos [?]: 125 [2], given: 32

1 KUDOS received
Manager
Manager
avatar
Joined: 06 Feb 2008
Posts: 84

Kudos [?]: 26 [1], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 10:27
1
This post received
KUDOS
goalsnr wrote:
sjgmat wrote:
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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks


C

Dr A says the vaccine is useless without giving reasons why it is useless.

In C - its stated tennis balls are best without giving reasons


Also in B Dr A refuse to trust on medical journal report without giving any reasons.. :roll:

Kudos [?]: 26 [1], given: 0

1 KUDOS received
SVP
SVP
User avatar
Joined: 07 Nov 2007
Posts: 1790

Kudos [?]: 1091 [1], given: 5

Location: New York
Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 12:45
1
This post received
KUDOS
zoinnk wrote:
sjgmat wrote:
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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks


Answer is C. The stimulus shows circular reasoning.

A: I think the vaccine is bad.
B: The vaccine is not bad because of these data.
A: The data must be wrong, because the vaccine is bad.

C also shows circular reasoning:
Wingzz tennis balls are the best because they are the best.


good one..
Agree with you..
_________________

Your attitude determines your altitude
Smiling wins more friends than frowning

Kudos [?]: 1091 [1], given: 5

1 KUDOS received
Manager
Manager
User avatar
Joined: 11 Mar 2008
Posts: 110

Kudos [?]: 27 [1], given: 0

Location: Canada
Re: CR: Vaccine [#permalink]

Show Tags

New post 02 Sep 2008, 12:25
1
This post received
KUDOS
sjgmat wrote:
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.


Info from the text: “The vaccine is useless” because “the vaccine is worthless” i.e. no reason is given

A) “The vaccine is unsafe” because “three patients have been harmed” some sort of reasoning is present

B) JJ recommends this milk BUT SINCE i don’t trust this ninja i won’t buy this milk – a reason is there: this ninja is not trustworthy source for info

C) WingzZ balls perform better because they are “far more effective than others” i.e. better. So WingzZ get to perform Better because they are Better.

D) I buy VVs because doctor recommends them more often because blah blah -- I bought a Yugo car because my best friend recommended it.

E) Reason is given

Thus C is the answer.

Kudos [?]: 27 [1], given: 0

1 KUDOS received
Manager
Manager
User avatar
Status: Mesmerized
Joined: 24 Jan 2010
Posts: 172

Kudos [?]: 129 [1], given: 12

Location: UAE, Dubai
Re: CR: Vaccine [#permalink]

Show Tags

New post 14 Oct 2010, 00:50
1
This post received
KUDOS
this is circular reasoning, i.e., someone is stating something is effective because he thinks it's effective. That someone didn't mention why it's good or effective, and his only reasoning for it is because he thinks it's good. In this questions we need to look for reasoning similar to that. In C there is no mentioning why he thinks the balls are good; he just thinks they are effective.
so the answer is C
_________________

Nanquam Fractum

Kudos [?]: 129 [1], given: 12

1 KUDOS received
Senior Manager
Senior Manager
User avatar
Joined: 29 Oct 2008
Posts: 412

Kudos [?]: 345 [1], given: 34

Location: United States
Concentration: Marketing, Technology
Re: The new influenza vaccine [#permalink]

Show Tags

New post 20 May 2011, 17:08
1
This post received
KUDOS
raven678 wrote:
The OA is C. C is the only answer with no backing and is only based on an opinion.

A good explanation is available at this link with proper reasoning.
http://www.beatthegmat.com/dr-a-dr-b-tr ... html#48255

HTH
_________________

If you know what you're worth, then go out and get what you're worth. But you gotta be willing to take the hits, and not pointing fingers saying you ain't where you wanna be because of anybody! Cowards do that and You're better than that!
The path is long, but self-surrender makes it short; the way is difficult, but perfect trust makes it easy.

Fire the final bullet only when you are constantly hitting the Bull's eye, till then KEEP PRACTICING.
Failure establishes only this, that our determination to succeed was not strong enough.
Getting defeated is just a temporary notion, giving it up is what makes it permanent.

http://gmatclub.com/forum/1000-sc-notes-at-one-place-in-one-document-with-best-of-explanations-192961.html

Press +1 Kudos, if you think my post gave u a tiny tip.

Kudos [?]: 345 [1], given: 34

Intern
Intern
avatar
Joined: 26 Jul 2007
Posts: 32

Kudos [?]: 4 [0], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 05:17
sjgmat wrote:
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.

Any opinoins?

Can someone guide me with general logic/checkpoints to tackle such questions? 90% of time I select wrong solution :cry:

Thanks

Hello sjgmat,

I'm not good at CR. But i will try and go with B.
Because of the five, only B seems to have the same logic as the Dr A's behavior. In B, i'm not buying the milk just because i don't trust Jerrold Jersey.
A is not similar to Dr A position
C out because it's just a general statement
D contradicts Dr A's behavior because i'm following the recommendation of doctors
E out!
What is the OA?

Kudos [?]: 4 [0], given: 0

Intern
Intern
avatar
Joined: 22 Apr 2008
Posts: 36

Kudos [?]: 74 [0], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 05:24
Even I selected B but was wrong.

will post the OA soon, lets wait for some more replies

Thanks

Kudos [?]: 74 [0], given: 0

Intern
Intern
avatar
Joined: 26 Jul 2007
Posts: 32

Kudos [?]: 4 [0], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 05:32
1
This post was
BOOKMARKED
sjgmat wrote:
Even I selected B but was wrong.

will post the OA soon, lets wait for some more replies

Thanks

Ok :?
Then let's wait for the explanations (seems to be E then but i don't see the similarity yet!)

Kudos [?]: 4 [0], given: 0

Intern
Intern
avatar
Joined: 10 May 2008
Posts: 2

Kudos [?]: [0], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 06:00
i think its E

Dr A's argument is that a test is flawed because the results are not as per expectation. Same is stated in E, but in the exactly opposite way - Test result is guaranteed because of the college factor... Looks like the best choice to me... am i clear?

Kudos [?]: [0], given: 0

Current Student
User avatar
Joined: 08 Oct 2007
Posts: 169

Kudos [?]: 26 [0], given: 7

Location: Berkeley, CA
Schools: Berkeley-Haas MBA
WE 1: Investment Management (fund of funds)
WE 2: Private Equity ($2bn generalist fund)
Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 11:13
Another one for C - circular reasoning.

Kudos [?]: 26 [0], given: 7

Manager
Manager
User avatar
Joined: 27 Jun 2008
Posts: 155

Kudos [?]: 34 [0], given: 11

Re: CR: Vaccine [#permalink]

Show Tags

New post 25 Jul 2008, 22:09
Clearly C as no reason has been provided atleast in the question.

Kudos [?]: 34 [0], given: 11

Manager
Manager
avatar
Joined: 03 Jun 2008
Posts: 134

Kudos [?]: 47 [0], given: 0

Schools: ISB, Tuck, Michigan (Ross), Darden, MBS
Re: CR: Vaccine [#permalink]

Show Tags

New post 26 Jul 2008, 01:18
C for me too
_________________

-----------------------------------------------------------
'It's not the ride, it's the rider'

Kudos [?]: 47 [0], given: 0

Intern
Intern
avatar
Joined: 22 Apr 2008
Posts: 36

Kudos [?]: 74 [0], given: 0

Re: CR: Vaccine [#permalink]

Show Tags

New post 26 Jul 2008, 07:33
OA is C

Thanks everyone

Kudos [?]: 74 [0], given: 0

Manager
Manager
avatar
Joined: 03 Aug 2009
Posts: 85

Kudos [?]: 145 [0], given: 1

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

Show Tags

New post 18 Aug 2009, 01:06
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.
_________________

Consider kudos for good post.

Kudos [?]: 145 [0], given: 1

Manager
Manager
User avatar
Joined: 17 Jul 2008
Posts: 246

Kudos [?]: 484 [0], given: 29

Re: The new influenza vaccine [#permalink]

Show Tags

New post 18 Aug 2009, 01:33
gmataspirant2009 wrote:
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.


I think the answer B because Doctor A 's reasoning faulty because he does not care if the studies worth or not he is just doing what's right. He does not trust the studies . In B he does not trust Jerrold so he will not buy.
_________________

Please give kudos if you enjoy the explanations that I have given. Thanks :)

Kudos [?]: 484 [0], given: 29

Senior Manager
Senior Manager
avatar
Joined: 18 Aug 2009
Posts: 414

Kudos [?]: 145 [0], given: 16

Schools: UT at Austin, Indiana State University, UC at Berkeley
WE 1: 5.5
WE 2: 5.5
WE 3: 6.0
Re: The new influenza vaccine [#permalink]

Show Tags

New post 18 Aug 2009, 06:11
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?

(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.

The answer is C. Because Dr. A is using flawed logic, and answer C is giving the same flawed logic as given in the speech of Dr. A
_________________

Never give up,,,

Kudos [?]: 145 [0], given: 16

Re: The new influenza vaccine   [#permalink] 18 Aug 2009, 06:11

Go to page    1   2   3    Next  [ 57 posts ] 

Display posts from previous: Sort by

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

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.