Eating beets significantly lowers the risk of cancer, : GMAT Critical Reasoning (CR)
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# Eating beets significantly lowers the risk of cancer,

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Eating beets significantly lowers the risk of cancer, [#permalink]

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06 Nov 2012, 18:09
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Eating beets significantly lowers the risk of cancer, according to an article in a nutritional magazine. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with the disease as people who did not.

Which of the following, if true, most weakens the argument in the magazine article?

A) Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not.
B) Participants in the study reported consuming no vegetables other than beets.
C) The study was only conducted in one city.
D) In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.
E) The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.
[Reveal] Spoiler: OA

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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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11 Nov 2012, 04:20
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kingb wrote:
Eating beets significantly lowers the risk of cancer, according to an article in a nutritional magazine. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with the disease as people who did not.

Which of the following, if true, most weakens the argument in the magazine article?

A) Another study found that people who consumed one tablespoon of flax seed oil per day were more than four times less likely to be diagnosed with cancer as those who did not.
B) Participants in the study reported consuming no vegetables other than beets.
C) The study was only conducted in one city.
D) In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.
E) The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.

There are few assumptions that the argument makes:
1. People taken in the study had same health conditions.
2. People who ate beet did not do anything else that could lead to lower risk of cancer.

Now let's look at the answer choice:

A. is Incorrect as we are just concerned with Beets. So, it is out of scope.
B. is incorrect as it strengthens the arguments.
C. is Incorrect. Even if the study is conducted in one city, claim can still be made. Out of Scope.
D. is Incorrect as our target group is people are yet to diagnose. Out of scope.
E. is Correct as it points to 2nd point mentioned in the Assumption. It provides a possibility in which physical exercise is responsible for lower diagnose and not eating beets.
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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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11 Nov 2012, 04:28
D is wrong because the premise says "beets consumption reduces the likely hood of getting cancer" NOT curing cancer.

E works well here.

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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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11 Nov 2012, 10:49
though i got answer E as correct but i just want to know, in such Cause and effect weaken questions, where survey is involved, if we weaken the basis of the stats the argument gets weakened. Hence if we target the restrictive sample (only one city was used) wont it weaken the argument.
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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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11 Nov 2012, 10:55
Archit143 wrote:
though i got answer E as correct but i just want to know, in such Cause and effect weaken questions, where survey is involved, if we weaken the basis of the stats the argument gets weakened. Hence if we target the restrictive sample (only one city was used) wont it weaken the argument.

Hi i think you can do that when you undermine the study undermines the conclusion. But here if we say "study was done in 1 city" the beet hypothesis still holds.

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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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11 Nov 2012, 11:33
Jp27 wrote:
Archit143 wrote:
though i got answer E as correct but i just want to know, in such Cause and effect weaken questions, where survey is involved, if we weaken the basis of the stats the argument gets weakened. Hence if we target the restrictive sample (only one city was used) wont it weaken the argument.

Hi i think you can do that when you undermine the study undermines the conclusion. But here if we say "study was done in 1 city" the beet hypothesis still holds.

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Hi JP
agreed to ur view, but when the option says study was done only in one city, than doesnt that mean , study was more restrictive, and it can't be generalized.

But yes its not mentioned how big was that city.......may be equal to the size of any other state.

If the above estimation is true than it cant be used to undermine.
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Re: Eating beets significantly lowers the risk of cancer, [#permalink]

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27 Jul 2014, 03:32
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Eating beets significantly lowers the risk of cancer,   [#permalink] 27 Jul 2014, 03:32
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