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# In a suburban community in the Southeast, neighborhood security

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General GMAT Forum Moderator
Joined: 29 Jan 2015
Posts: 1091
Location: India
WE: General Management (Non-Profit and Government)
In a suburban community in the Southeast, neighborhood security  [#permalink]

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25 Apr 2017, 08:10
3
00:00

Difficulty:

25% (medium)

Question Stats:

75% (01:45) correct 25% (02:02) wrong based on 129 sessions

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In a suburban community in the Southeast, neighborhood security guards have their residents’ permission to call local police if anyone is observed entering the home of a resident who is out of town. When residents leave town, they report their departure and return dates to the neighborhood security office. If guards observe someone entering the home of a resident who is out of town, they will immediately call the police. The residential burglary rate for that community has decreased since the implementation of this reporting procedure.

If it is true that the burglary rate has decreased in this community since the reporting procedure was implemented, then which of the following would be most important to know to make sure the conclusion is valid?

(A) Are residents who report their travel plans to the security office also taking other precautions to protect their homes while they are away?
(B) How many other communities utilize this reporting procedure with their neighborhood security offices?
(C) Will residents be harassed by security guards or the police if they return home early from their travels?
(D) Is this community similar to other guarded suburban communities in the Southeast?
(E) Are homes in this community sometimes burglarized even when residents are in town?

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Joined: 21 May 2016
Posts: 19
Re: In a suburban community in the Southeast, neighborhood security  [#permalink]

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25 Apr 2017, 08:23
rohan2345 wrote:
In a suburban community in the Southeast, neighborhood security guards have their residents’ permission to call local police if anyone is observed entering the home of a resident who is out of town. When residents leave town, they report their departure and return dates to the neighborhood security office. If guards observe someone entering the home of a resident who is out of town, they will immediately call the police. The residential burglary rate for that community has decreased since the implementation of this reporting procedure.

If it is true that the burglary rate has decreased in this community since the reporting procedure was implemented, then which of the following would be most important to know to make sure the conclusion is valid?

(A) Are residents who report their travel plans to the security office also taking other precautions to protect their homes while they are away?
(B) How many other communities utilize this reporting procedure with their neighborhood security offices?
(C) Will residents be harassed by security guards or the police if they return home early from their travels?
(D) Is this community similar to other guarded suburban communities in the Southeast?
(E) Are homes in this community sometimes burglarized even when residents are in town?

I'm not sure if this is a 700 or a 600 level question. The choice boils down to A and E and A is the correct answer. If the answer to the question in choice A is 'yes, the residents take other precautions', then it means that the reporting procedure and security guards have no role to play and therefore the conclusion breaks. But if the answer to the question is 'no', then the conclusion is made stronger. Choice E merely leads to sometimes burglarized versus not burglarized sometimes when residents are in town; this doesnt have any bearing on the conclusion.
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Joined: 12 Dec 2016
Posts: 1608
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
Re: In a suburban community in the Southeast, neighborhood security  [#permalink]

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09 May 2017, 23:27
why there are so many people share the same thoughts, check out the number of people who made choice A.
Senior Manager
Joined: 08 Jun 2015
Posts: 432
Location: India
GMAT 1: 640 Q48 V29
GMAT 2: 700 Q48 V38
GPA: 3.33
Re: In a suburban community in the Southeast, neighborhood security  [#permalink]

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16 Apr 2018, 01:25
+1 for option A.

Ask yourself - What if residents take some other measures to prevent burglary. If yes - conclusion weaken else conclusion strengthened.

Hence option A.
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Re: In a suburban community in the Southeast, neighborhood security &nbs [#permalink] 16 Apr 2018, 01:25
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