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# Zoo animal induced allergies

Author Message
VP
Joined: 05 Jul 2008
Posts: 1378

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05 Feb 2009, 18:07
People who have spent a lot of time in contact with animals often develop
animal-induced allergies, a significant percentage of which are quite serious. In a
survey of current employees in major zoos, about 30 percent had animal-induced
allergies. However, a zoo employee who develops a serious animal-induced allergy
is very likely to switch to some other occupation.
Which of the following hypotheses receives the strongest support from the
information given?
A. The incidence of serious animal-induced allergies among current zoo
employees is lower than that among the general population.
B. Zoo employees tend to develop animal-induced allergies that are more serious
than those of other people who spend equally large amounts of time with
animals.
C. Exposure to domestic pets is, on the whole, less likely to cause
animal-induced allergy than is exposure to the kinds of animals that are kept
in zoos.
D. There is no occupation for which the risk of developing an animal-induced
allergy is higher than 30 percent.
E. Among members of the general population who have spent as much time with
animals as zoo employees typically have, the percentage with animal-induced
allergies is significantly more than 30 percent.
Manager
Joined: 17 Dec 2008
Posts: 168
Re: Zoo animal induced allergies [#permalink]

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05 Feb 2009, 19:45
Ok I picked D too fast...
But I looked at it again and I am not sure but it has to be A or E. Both are true.

A. The incidence of serious animal-induced allergies among current zoo
employees is lower than that among the general population.
B. Zoo employees tend to develop animal-induced allergies that are more serious
than those of other people who spend equally large amounts of time with
animals.

D. There is no occupation for which the risk of developing an animal-induced
allergy is higher than 30 percent.
E. Among members of the general population who have spent as much time with
animals as zoo employees typically have, the percentage with animal-induced
allergies is significantly more than 30 percent.

B - No evidence to prove that zoo empl get more serious allergies than ppl.
C - Irrelevant
D - Not mentioned about other occupations %, its a far reaching argument to
assume that zoo employees go to other occupations because of this.

E could be true since gnrl polulation = zoo employee with 30% injuries and gnrl population also get 30%.
A could be true too since ppl with serious injury have left and joined gnrl population....

argh.... Would have to take a guess
Senior Manager
Joined: 23 May 2008
Posts: 395
Re: Zoo animal induced allergies [#permalink]

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05 Feb 2009, 23:20
icandy wrote:
People who have spent a lot of time in contact with animals often develop
animal-induced allergies, a significant percentage of which are quite serious. In a
survey of current employees in major zoos, about 30 percent had animal-induced
allergies. However, a zoo employee who develops a serious animal-induced allergy
is very likely to switch to some other occupation.
Which of the following hypotheses receives the strongest support from the
information given?
A. The incidence of serious animal-induced allergies among current zoo
employees is lower than that among the general population.
B. Zoo employees tend to develop animal-induced allergies that are more serious
than those of other people who spend equally large amounts of time with
animals.
C. Exposure to domestic pets is, on the whole, less likely to cause
animal-induced allergy than is exposure to the kinds of animals that are kept
in zoos.
D. There is no occupation for which the risk of developing an animal-induced
allergy is higher than 30 percent.
E. Among members of the general population who have spent as much time with
animals as zoo employees typically have, the percentage with animal-induced
allergies is significantly more than 30 percent.

it's E............
Director
Joined: 23 May 2008
Posts: 760
Re: Zoo animal induced allergies [#permalink]

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05 Feb 2009, 23:36
A

when zoo employees allergies get too bad they leave, so there are more people in general public with serious allergies from zoo animals than at the zoo
SVP
Joined: 17 Jun 2008
Posts: 1507
Re: Zoo animal induced allergies [#permalink]

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06 Feb 2009, 01:29
It should be A. If people who develop serious allergy are very likely to switch to some other occupation. That means, chances are that employees of the zoo who developed serious allergy have already switched to some other occupation.
Director
Joined: 01 Aug 2008
Posts: 696
Re: Zoo animal induced allergies [#permalink]

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06 Feb 2009, 12:08
I go with D. Zoo employees switch their jobs because less animal induced other work places other than zoos?

Senior Manager
Joined: 21 Apr 2008
Posts: 479
Schools: Kellogg, MIT, Michigan, Berkeley, Marshall, Mellon
Re: Zoo animal induced allergies [#permalink]

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06 Feb 2009, 13:02
icandy wrote:
People who have spent a lot of time in contact with animals often develop
animal-induced allergies, a significant percentage of which are quite serious. In a
survey of current employees in major zoos, about 30 percent had animal-induced
allergies. However, a zoo employee who develops a serious animal-induced allergy
is very likely to switch to some other occupation.
Which of the following hypotheses receives the strongest support from the
information given?
A. The incidence of serious animal-induced allergies among current zoo
employees is lower than that among the general population.
B. Zoo employees tend to develop animal-induced allergies that are more serious
than those of other people who spend equally large amounts of time with
animals.
C. Exposure to domestic pets is, on the whole, less likely to cause
animal-induced allergy than is exposure to the kinds of animals that are kept
in zoos.
D. There is no occupation for which the risk of developing an animal-induced
allergy is higher than 30 percent.
E. Among members of the general population who have spent as much time with
animals as zoo employees typically have, the percentage with animal-induced
allergies is significantly more than 30 percent.

Hi mates,

IMO A

If almost all the zoo employees that develop an animal-induced allergy (which is 30%) change their job, there will be very few zoo employees with such allergy, and therefore more general people with such allergy (i.e. ex-zoo employees)

OA and Source?

Regards
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SVP
Joined: 07 Nov 2007
Posts: 1765
Location: New York
Re: Zoo animal induced allergies [#permalink]

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06 Feb 2009, 13:32
1
KUDOS
We got A,D,E as answers till now.
Lets see...

A - The incidence of serious animal-induced allergies among current zoo
employees is lower than that among the general population.

Please note that here we are comparing..incidence of serious alleries between "zoo employees" vs "general population "

It would have been right if compares "zoo employees" vs "general population who have spent as much time as zoo employees".

D. There is no occupation for which the risk of developing an animal-induced
allergy is higher than 30 percent.

No where it is mentioned that.. no accupation will have risk >30% They took example of zoo..

For e.g. Occupation : Dog Catcher..(Municipality Job) .. probably they may have high risk >30

Can you rule out this statement.
so D is out.

E. Among members of the general population who have spent as much time with
animals as zoo employees typically have, the percentage with animal-induced
allergies is significantly more than 30 percent.

Here comparing general population (who spent animals as same time) vs zoo employees

Initally both 30% allergies (e.g 20% non-serious allergeis + 10% serious allergies)

total members : 100 (zoo) 100 (GP)

No allergy : Norman allergy : Seriou allergy
assume they are replacing seriously allergic employers every month

First month
70:20:10 (zoo emp)
70:20:10 (general pub)

second month
after replacement of 10 (serious allergy emp)
80:20:0 (zoo emp)
70:20:10 (general pub)

after one more month.

56:36:8 (zoo emp)
49:34:17 (general pub)

obviously.. general pub> zoo emp.

I will go with E.
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Re: Zoo animal induced allergies   [#permalink] 06 Feb 2009, 13:32
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