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In a certain wildlife park, park rangers are able to track

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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 16 Jan 2012, 09:28
sophin wrote:
Anyway, I support E.Because if the answer is NO, the conclusion is weakened.;if the answer is YES,of course the conclusion is supported.No other option leads to the low fertility.


Man, C is the only answer. Think this way:

If there are other reasons (whatever, we don;t care) why those animals are getting immobilized and in those circumstances animals fertility rate comes down, it is very clear that the tranquilizer is the culprit. Otherwise tranquilizer is not the culprit
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 31 Dec 2013, 23:57
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 01 Jan 2014, 06:21
GOOD QUESTION!!!!! WE NEED TO FIND ASSUMPTION FIRST......
conclusion- some substance in the tranquilizer inhibits fertility.
premise[/color] - Putting a collar on a rhinoceros involves immobilizing the animal by shooting it with a tranquilizer dart.
- Female rhinoceroses that have been frequently recollared have significantly lower fertility rates than uncollared females.

[color=#ed1c24]ASSUMPTION
- SINCE RECOLLARED FEMALE RHINOS HAVE SIGNIFICANTLY LOW INFERTILITY RATES WHILE OTHER FEMALES DON'T AND SOME SUBSTANCE IN THE TRANQUILIZER INHIBITS INFERTILITY..........THE BALANCE FEMALE RHINOS WERE NOT SUBJECT TO THIS TRANQUILIZER FOR OTHER REASONS AND HENCE THEY ARE FREE FROM ITS CHEMICALS WHICH EFFECT FERTILITY......AND HENCE some substance in the tranquilizer ONLY inhibits fertility
[/color]
WE THEREFORE NEED TO FIND IF THE BALANCE ALSO DUE TO OTHER REASONS WERE TRANQUILIZED........
CORRECT ANS " C"......
C. How often park rangers need to use tranquilizer darts to immobilize rhinoceroses for reasons other than attaching radio collars ------


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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 23 Jul 2014, 09:05
Hi in gmat prep i see the options have changed:

the correct answer option is :
Any stress that female rhino may suffer as a result of being immobilized and handled has little or no effect on its fertility


Can someone pls explain!
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 09 Jan 2015, 00:08
Expert's post
I will try to put this in simpler terms:
Conclusion : Tranquilizer --> Inhibits infertility
Premise : 2categories of rhinos (collared and uncollared).
We will use the variance test to anayse
options:
C. How often park rangers need to use tranquilizer darts to immobilize rhinoceroses for reasons other than attaching radio collars
strengthen: Very often tranquilizers are used other than collaring--> uncollared sets of rhinos could also be tranquilized under this condition. So if tranqs were to inhibit fertility then this group of uncollared rhinos should become infertile as well
Weaken: Not as much ---> then the conclusion is not that much affected
Hence C
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 25 May 2015, 16:59
I think the key to solve this problem successfully is to realize that there are 2 groups of rhinos, one with radio tag and other w/o the tag. If you assume that all rhinos are actually being tagged than you wont get to the correct solution. What I want to say is that once a tag fall off than the same rhino is tranquilized again and again and again... and you will say with certainty that the tranq is the culprit for the fertility only if compared with other rhinos w/o a tagg and never been tranqed and their fertility rate.
I admit I would not had that in mind on test day. I assumed that all rhinos in the park were tranqulized in order to get the tag, the difference is that I made a group one more frequently transited and the other group let say only once, and I was looking for answer in these lines and it took me nowere :( All answers were irelevant , my best bet was on D even though I knew males are not in the argument. If there was expeclitly stated that tehre are rhinos that dont have tagges at all than I would go for C, but I didnt assume that and got it wrong.
Hope my reasoning helps
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 25 Jun 2015, 00:44
WaterFlowsUp wrote:
I will try to put this in simpler terms:
Conclusion : Tranquilizer --> Inhibits infertility
Premise : 2categories of rhinos (collared and uncollared).
We will use the variance test to anayse
options:
C. How often park rangers need to use tranquilizer darts to immobilize rhinoceroses for reasons other than attaching radio collars
strengthen: Very often tranquilizers are used other than collaring--> uncollared sets of rhinos could also be tranquilized under this condition. So if tranqs were to inhibit fertility then this group of uncollared rhinos should become infertile as well
Weaken: Not as much ---> then the conclusion is not that much affected
Hence C


hi,

the whole logic of this argument depends on the assumption that tranquilizer darts are also used for reasons other than attaching radio collars.
we need to assume this w/o which choice C fails. But, how should we know that we need to consider this assumption while answering?
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Re: In a certain wildlife park, park rangers are able to track [#permalink] New post 25 Jun 2015, 20:27
Expert's post
thoufique wrote:
WaterFlowsUp wrote:
I will try to put this in simpler terms:
Conclusion : Tranquilizer --> Inhibits infertility
Premise : 2categories of rhinos (collared and uncollared).
We will use the variance test to anayse
options:
C. How often park rangers need to use tranquilizer darts to immobilize rhinoceroses for reasons other than attaching radio collars
strengthen: Very often tranquilizers are used other than collaring--> uncollared sets of rhinos could also be tranquilized under this condition. So if tranqs were to inhibit fertility then this group of uncollared rhinos should become infertile as well
Weaken: Not as much ---> then the conclusion is not that much affected
Hence C


hi,

the whole logic of this argument depends on the assumption that tranquilizer darts are also used for reasons other than attaching radio collars.
we need to assume this w/o which choice C fails. But, how should we know that we need to consider this assumption while answering?


No, you don't have to assume that darts are used for other purposes. Option (C) tells you that you have to find out whether they are used for other reasons and if yes, then how often are they used. The answer to question in (C) could be 'Never' or it could be 'every week'. This would tell you whether the data you collected about collared rhinos and uncoloured rhinos is reliable.
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In a certain wildlife park, park rangers are able to track [#permalink] New post 25 Jun 2015, 21:26
VeritasPrepKarishma wrote:
thoufique wrote:
WaterFlowsUp wrote:
I will try to put this in simpler terms:
Conclusion : Tranquilizer --> Inhibits infertility
Premise : 2categories of rhinos (collared and uncollared).
We will use the variance test to anayse
options:
C. How often park rangers need to use tranquilizer darts to immobilize rhinoceroses for reasons other than attaching radio collars
strengthen: Very often tranquilizers are used other than collaring--> uncollared sets of rhinos could also be tranquilized under this condition. So if tranqs were to inhibit fertility then this group of uncollared rhinos should become infertile as well
Weaken: Not as much ---> then the conclusion is not that much affected
Hence C


hi,

the whole logic of this argument depends on the assumption that tranquilizer darts are also used for reasons other than attaching radio collars.
we need to assume this w/o which choice C fails. But, how should we know that we need to consider this assumption while answering?


No, you don't have to assume that darts are used for other purposes. Option (C) tells you that you have to find out whether they are used for other reasons and if yes, then how often are they used. The answer to question in (C) could be 'Never' or it could be 'every week'. This would tell you whether the data you collected about collared rhinos and uncoloured rhinos is reliable.




hi karishma,

thanks for the reply. We don't need to assume that, but we need to consider the possibility.
In a certain wildlife park, park rangers are able to track   [#permalink] 25 Jun 2015, 21:26

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