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# Reviewing historical data, medical researchers in California

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Senior Manager
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Reviewing historical data, medical researchers in California [#permalink]

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03 Sep 2008, 05:18
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Reviewing historical data, medical researchers in California found that counties with the largest number of television sets per capita have had the lowest incidence of a serious brain disease, mosquito-borne encephalitis. The researchers have concluded that people in these counties stay indoors more and thus avoid exposure to the disease.

The researchers conclusion would be most strengthened if which of the following were true?

(A) Programs designed to control the size of disease-bearing mosquito populations have not affected the incidence of mosquito borne encephalitis.
(B) The occupations of county residents affect their risk of exposure to mosquito-borne encephalitis more than does television-watching.
(C) The incidence of mosquito-borne encephalitis in counties with the largest number of television sets per capita is likely to decrease even further.
(D) The more time people in a county spend outdoors, the greater their awareness of the dangers of mosquito-borne encephalitis.
(E) The more television sets there are per capita in a county, the more time the average county resident spends watching television.
[Reveal] Spoiler: OA

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03 Sep 2008, 06:30
I think it is E. What is OA

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03 Sep 2008, 06:31
Only E strengthens the conclusion. The more television sets there are per capita in a county, the more time the average county resident spends watching television.
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03 Sep 2008, 07:00
I think A strenghens it. Whats the OA ?

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03 Sep 2008, 08:16
A,D and E all strenghten the conclusion but E does it the most
IMO E

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03 Sep 2008, 08:44
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Nihit wrote:
Reviewing historical data, medical researchers in California found that counties with the largest number of television sets per capita have had the lowest incidence of a serious brain disease, mosquito-borne encephalitis. The researchers have concluded that people in these counties stay indoors more and thus avoid exposure to the disease.
The researchers conclusion would be most strengthened if which of the following were true?

A. Programs designed to control the size of disease-bearing mosquito populations have not affected the incidence of mosquito borne encephalitis.

Sort of saying programs have not affected, probably staying indoors did. But does not connect largest number of per capita sets to the lowest incidence of disease and staying indoors.

B. The occupations of county residents affect their risk of exposure to mosquito-borne encephalitis more than does television-watching.

If occupations effect, we dont know any thing about what majority do. Out

C. The incidence of mosquito-borne encephalitis in counties with the largest number of television sets per capita is likely to decrease even further.

How??

D. The more time people in a county spend outdoors, the greater their awareness of the dangers of mosquito-borne encephalitis.

Ok. But we know that these guys probably stay indoors

E. The more television sets there are per capita in a county, the more time the average county resident spends watching television.

Links large number of TV sets to more time spent watching TV and hence stay indoors and hence less incidence

My pick is E

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04 Sep 2008, 05:50
I Think E does

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04 Sep 2008, 13:52
Argument assumes counties with the largest number of television sets per capita made people stay indoor and thus reduced the exposure to disease.

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05 Sep 2008, 05:21
Although I will go with E....I have a query here. Is it assumed that all the television sets are indoor or people watching television are staying indoor? Can television set be outdoor?

I may be crazy here....but does A not support best in such a case?

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05 Sep 2008, 15:04
E ... Straight Forward IMO

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05 Sep 2008, 22:52
IMO E)

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27 Oct 2010, 06:31
From my viewpoint it should be E. I don't remember where I read this ( W.A.G: Kaplan 800) but it's about an implementation assumption.

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27 Oct 2010, 06:37
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We have 2 facts here.
1: "County A has maximum number of TVs"
2: "Residents of county A stay indoors, thus are not exposed to the mosquito-bites".

Suppose county A is ghost haunted and the fear keeps the people indoors, in that case TV sets have nothing to do with people not getting mosquito-bites. So what we need is a way to connect the two facts; 1 and 2.
Lets analyze the options.

(A) Programs designed to control the size of disease-bearing mosquito populations have not affected the incidence of mosquito borne encephalitis.
OK, so we know the program sucked so far as the "mosquito borne encephalitis" is concerned, but what about TV sets? You are not saying anything about that. Rejected.
(B) The occupations of county residents affect their risk of exposure to mosquito-borne encephalitis more than does television-watching.
So what you are saying is that its the job that protected people and not the TV. You are actually weakening our argument. Rejected.
(C) The incidence of mosquito-borne encephalitis in counties with the largest number of television sets per capita is likely to decrease even further.
Very good, but what role are TV sets playing in that? Neither strengthen nor weaken. Rejected.
(D) The more time people in a county spend outdoors, the greater their awareness of the dangers of mosquito-borne encephalitis.
So what you are telling us is, if people stayed outdoor they'd be safer than otherwise? Weakening our argument. Rejected.
(E) The more television sets there are per capita in a county, the more time the average county resident spends watching television.
You, sir, just provided the link that we in the GMATClub were looking for. You the man!
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PS: Correct me if I am wrong.

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27 Oct 2010, 07:02
+1 E
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27 Oct 2010, 08:04
its E

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27 Oct 2010, 11:57
My answer is E. The more TV sets means more people are staying in to watch TV and are not outside getting bitten.
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27 Oct 2010, 12:42
Imho - E

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27 Oct 2010, 14:52
E.

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28 Oct 2010, 02:04
Definitely E....

fun approach vaibhav!
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29 Oct 2010, 01:23
Straight forward question...E is my pick

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Re: CR: Medical researchers   [#permalink] 29 Oct 2010, 01:23

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