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CR - person who became teachers in 1968

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CR - person who became teachers in 1968 [#permalink] New post 23 Mar 2010, 10:18
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Question Stats:

60% (01:34) correct 40% (01:51) wrong based on 5 sessions
Please provide explanation

Of those person who became teachers in 1968 and who later left the profession, 30 percent today earn salaries above $35,000 a year: of those who became teachers in 1968 and have remained in the profession, only 15 percent today earn salaries above $35,000 a year. These figures indicate how underpaid teachers are today.

The argument above depends on which of the following assumptions about the persons for whom statistics are cited?

(A) At least one-third of the group of persons who have remained in teaching would today be earning more than $35,000 a year if they had left teaching.
(B) The group of persons who left teaching and the group who did not are comparable in terms of factors that determine how much people outside the teaching profession are paid.
(C) Most of those persons who left teaching did so entirely because of the low salaries teachers earn.
(D) As a group, those persons who have remained in teaching are abler and more dedicated than the group of persons who left teaching.
(E) The group of persons who left teaching and who today earn more than $35,000 a year were more capable teachers than the group who remained in the profession
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Re: CR - person who became teachers in 1968 [#permalink] New post 23 Mar 2010, 10:27
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seekmba wrote:
Please provide explanation

Of those person who became teachers in 1968 and who later left the profession, 30 percent today earn salaries above $35,000 a year: of those who became teachers in 1968 and have remained in the profession, only 15 percent today earn salaries above $35,000 a year. These figures indicate how underpaid teachers are today.

The argument above depends on which of the following assumptions about the persons for whom statistics are cited?

(A) At least one-third of the group of persons who have remained in teaching would today be earning more than $35,000 a year if they had left teaching. --- Its a shell game answer, the argument cant depend on that in fact the argument is giving us statistics so incorrect
(B) The group of persons who left teaching and the group who did not are comparable in terms of factors that determine how much people outside the teaching profession are paid.--- Correct , This is what the argument is assuming that the conditions and factors are the same
(C) Most of those persons who left teaching did so entirely because of the low salaries teachers earn.--- no where its mentioned that they left their jobs because of low salaries
(D) As a group, those persons who have remained in teaching are abler and more dedicated than the group of persons who left teaching.--- Irrelevalent to the argument
(E) The group of persons who left teaching and who today earn more than $35,000 a year were more capable teachers than the group who remained in the profession -- Irrelevalent
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Re: CR - person who became teachers in 1968 [#permalink] New post 23 Mar 2010, 12:53
(A) At least one-third of the group of persons who have remained in teaching would today be earning more than $35,000 a year if they had left teaching.
>> This is a inference and not an assumption.
(B) The group of persons who left teaching and the group who did not are comparable in terms of factors that determine how much people outside the teaching profession are paid.
>> Correct assumption.
(C) Most of those persons who left teaching did so entirely because of the low salaries teachers earn.
>> Is not relevant for assumption of statistics.
(D) As a group, those persons who have remained in teaching are abler and more dedicated than the group of persons who left teaching.
>> Is not relevant for assumption of statistics.
(E) The group of persons who left teaching and who today earn more than $35,000 a year were more capable teachers than the group who remained in the profession
>> This weakens the argument.
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Re: CR - person who became teachers in 1968 [#permalink] New post 24 Mar 2010, 23:20
Between A and B.
But I will choose A.

Pr - 30% of teachers were underpaid in the past
Assumption - This proportion is correct today.
Concl - teachers are underpaid today.
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Re: CR - person who became teachers in 1968 [#permalink] New post 24 Mar 2010, 23:42
I think it's B.

Agree with nitishmahajan's explanation.
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Re: CR - person who became teachers in 1968 [#permalink] New post 27 Mar 2010, 07:17
thanku for the explanation
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Re: CR - person who became teachers in 1968 [#permalink] New post 07 Apr 2010, 07:48
B it is.
A is a prediction. It could have gone other way, and still you could make the same argument in present.
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Re: CR - person who became teachers in 1968 [#permalink] New post 09 Apr 2010, 11:19
IMO B.....:)
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Re: CR - person who became teachers in 1968 [#permalink] New post 02 Jun 2010, 04:50
nitishmahajan wrote:
seekmba wrote:
Please provide explanation

Of those person who became teachers in 1968 and who later left the profession, 30 percent today earn salaries above $35,000 a year: of those who became teachers in 1968 and have remained in the profession, only 15 percent today earn salaries above $35,000 a year. These figures indicate how underpaid teachers are today.

The argument above depends on which of the following assumptions about the persons for whom statistics are cited?

(A) At least one-third of the group of persons who have remained in teaching would today be earning more than $35,000 a year if they had left teaching. --- Its a shell game answer, the argument cant depend on that in fact the argument is giving us statistics so incorrect
(B) The group of persons who left teaching and the group who did not are comparable in terms of factors that determine how much people outside the teaching profession are paid.--- Correct , This is what the argument is assuming that the conditions and factors are the same
(C) Most of those persons who left teaching did so entirely because of the low salaries teachers earn.--- no where its mentioned that they left their jobs because of low salaries
(D) As a group, those persons who have remained in teaching are abler and more dedicated than the group of persons who left teaching.--- Irrelevalent to the argument
(E) The group of persons who left teaching and who today earn more than $35,000 a year were more capable teachers than the group who remained in the profession -- Irrelevalent


Nitish u said this is a shell game answer, is it a concept of Powerbible Gmat CR.

The answer is confusing between B and C
because yes at the end B is clearer but the confusing thing when reading for the first time is that one feels while reading "are they assuming that the factors are same when comparision is made"?
Thanks.
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Re: CR - person who became teachers in 1968   [#permalink] 02 Jun 2010, 04:50
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