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Politicians:Those economists who claim

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Politicians:Those economists who claim [#permalink]

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New post 21 Apr 2017, 23:33
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

78% (01:02) correct 22% (01:09) wrong based on 142 sessions

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Politician: Those economists who claim that consumer price increases have averaged less than 3 percent over the last year are mistaken. They clearly have not shopped anywhere recently. Gasoline is up 10 percent over the last year; my auto insurance, 12 percent; newspapers, 15 percent; propane, 13%; bread, 50 percent.

The reasoning in the politician’s argument is most vulnerable to criticism on the grounds that the argument

(A) impugns the character of the economists rather than addressing their arguments
(B) fails to show that the economists mentioned are not experts in the area of consumer prices
(C) mistakenly infers that something is not true from the claim that it has not been shown to be so
(D) uses evidence drawn from a small sample that may well be unrepresentative
(E) attempts to persuade by making an emotional appeal

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Re: Politicians:Those economists who claim [#permalink]

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New post 24 Apr 2017, 05:22
The correct answer choice is (D). The politician’s argument is that the claims
that price increases have averaged less than 3 percent are wrong, and in
support of that position the politician cites several examples of price
increases, each of which is greater than 3 percent. As mentioned in one of
the chapter sidebars, “an average is a composite number, and within the
average there can be a significant degree of variation and no single entity
need embody the exact characteristic of the average (for example, the
average weight of a 1 pound rock and a 99 pound rock is 50 pounds).” In
making the argument, the politician has focused in on several individual
examples while ignoring the fact that an average is a compilation of many
different numbers. Answer choice (D) perfectly captures the essence of this
sampling error. Answer choice (A): The argument does not contain a source
or ad hominem attack. Simply stating that a position is wrong is different than
criticizing the character of that person. Answer choice (B): To claim that the
economists are wrong does not require showing that they are not pricing
experts, and hence this answer is incorrect. Answer choice (C): The politician
attempts to refute the position by providing evidence about large price
increases for certain products. This process, which involves facts, is different
than inferring that a claim is false because it has not been shown to be true.
This answer choice would better describe an argument such as the following:
“you have not proven that God exists, so there must be no God.” Answer
choice (D): This is the correct answer. Citing several examples to refute an
average is a doomed strategy. Answer choice (E): There is no appeal to
emotion present; percentages are used to make the argument.
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Politician: Those economists who claim that consumer price increases [#permalink]

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New post Updated on: 27 Aug 2017, 19:03
Politician: Those economists who claim that consumer price increases have averaged less than 3 percent over the last year are mistaken. They clearly have not shopped anywhere recently. Gasoline is up 10 percent over the last year; my auto insurance, 12 percent; newspapers, 15 percent; propane, 13%; bread, 50 percent. The reasoning in the politician’s argument is most vulnerable to criticism on the grounds that the argument

A. impugns the character of the economists rather than addressing their arguments
B. fails to show that the economists mentioned are not experts in the area of consumer prices
C. mistakenly infers that something is not true from the claim that it has not been shown to be so
D. uses evidence drawn from a small sample that may well be unrepresentative
E. attempts to persuade by making an emotional appeal

Source: Manhattan LSAT
Kudos will be given for all correct responses submitted prior to the OA being revealed!
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Originally posted by nightblade354 on 27 Aug 2017, 17:21.
Last edited by broall on 27 Aug 2017, 19:03, edited 1 time in total.
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Re: Politician: Those economists who claim that consumer price increases [#permalink]

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New post 27 Aug 2017, 19:08
nightblade354 wrote:
Politician: Those economists who claim that consumer price increases have averaged less than 3 percent over the last year are mistaken. They clearly have not shopped anywhere recently. Gasoline is up 10 percent over the last year; my auto insurance, 12 percent; newspapers, 15 percent; propane, 13%; bread, 50 percent. The reasoning in the politician’s argument is most vulnerable to criticism on the grounds that the argument

A. impugns the character of the economists rather than addressing their arguments
B. fails to show that the economists mentioned are not experts in the area of consumer prices
C. mistakenly infers that something is not true from the claim that it has not been shown to be so
D. uses evidence drawn from a small sample that may well be unrepresentative
E. attempts to persuade by making an emotional appeal

Source: Manhattan LSAT
Kudos will be given for all correct responses submitted prior to the OA being revealed!


Hi...

Reasoning in para..
Economists claim the increase in prices are LESS than 3%, but politician produces few items that have increased MORE than 3% and claims that economist is wrong and average increase is more than 3%

Clearly the politician picks up a small sample which are higher than 3% and claims the average is more than 3%.
It may well be possible that there are many items that have dropped or the increase has been less than 1% to get overall average less than 3%

This flaw is given by choice D

D
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1) Absolute modulus : http://gmatclub.com/forum/absolute-modulus-a-better-understanding-210849.html#p1622372
2)Combination of similar and dissimilar things : http://gmatclub.com/forum/topic215915.html
3) effects of arithmetic operations : https://gmatclub.com/forum/effects-of-arithmetic-operations-on-fractions-269413.html


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Re: Politicians:Those economists who claim [#permalink]

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New post 25 Feb 2018, 11:10
D is much better than C b/c D directly connects with the argument, there is no pattern in this question but C seems unintelligible.
Re: Politicians:Those economists who claim   [#permalink] 25 Feb 2018, 11:10
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