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A recent research study of undergraduate students analyzed

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A recent research study of undergraduate students analyzed [#permalink] New post 04 Feb 2009, 02:45
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A
B
C
D
E

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A recent research study of undergraduate students analyzed the effects of music on human emotions. Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks of their spring semester. At the end of the experiment, all of the students filled out a questionnaire assessing their emotional state. Based on the results of the questionnaires, all of the 10 students who attended the greatest number of concerts reported lower stress levels and higher satisfaction with their lives. Also, most of the 20 students who attended the fewest number of concerts reported below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?
A. Most of the 200 participants improved their emotional state and lowered their stress levels.
B. During each week of the experiment, the participants spent at least 2 hours less on their academic work as a result of concert attendance.
C. Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.
D. More than 6 participants attended at least 14 concerts during the course of the experiment.
E. At least some of the students participated in the study in order to gain free access to classical concerts.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 03:16
A?
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 03:17
It should be D
malar wrote:
A recent research study of undergraduate students analyzed the effects of music on human emotions. Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks of their spring semester. At the end of the experiment, all of the students filled out a questionnaire assessing their emotional state. Based on the results of the questionnaires, all of the 10 students who attended the greatest number of concerts reported lower stress levels and higher satisfaction with their lives. Also, most of the 20 students who attended the fewest number of concerts reported below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?
A. Most of the 200 participants improved their emotional state and lowered their stress levels.
B. During each week of the experiment, the participants spent at least 2 hours less on their academic work as a result of concert attendance.
C. Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.
D. More than 6 participants attended at least 14 concerts during the course of the experiment.
E. At least some of the students participated in the study in order to gain free access to classical concerts.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 03:41
Definitely D

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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 04:36
Hi,
I regularly follow this forum and find it very useful. Want to thank all for their valuable comments/explanations here.

can u please explain how D must be true? i expected A as answer based on evidence provided.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 06:30
A recent research study of undergraduate students analyzed the effects of music on human emotions. Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks of their spring semester. At the end of the experiment, all of the students filled out a questionnaire assessing their emotional state. Based on the results of the questionnaires, all of the 10 students who attended the greatest number of concerts reported lower stress levels and higher satisfaction with their lives. Also, most of the 20 students who attended the fewest number of concerts reported below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?
A. Most of the 200 participants improved their emotional state and lowered their stress levels.
B. During each week of the experiment, the participants spent at least 2 hours less on their academic work as a result of concert attendance.
C. Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.
D. More than 6 participants attended at least 14 concerts during the course of the experiment.
E. At least some of the students participated in the study in order to gain free access to classical concerts.

200 students => 1 concert/week for 12 wks => 12 concerts
all 10 students > greatest # concerts MUST BE GREATER than above.
Now I am not sure if its possible to attend 1 wk=> 2 concerts + 9 => 11 concerts.
If you assume that these attended atleast 2 concerts/wk > most sudents, then D makes sense.

Though not convince, I got the answer by POE and the subjective argument above.

A is a possible conclusion. There is no proof for MOST of students to state it since emotional levels/stress b4 and after expt not mentioned.

B. Out of scope - academic work

C. We don't know about the MAJORITY of students. Results of only some students mentioned.

D. Possible ....

E. Out of scope.

Hence Pick D.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 08:42
hey ritula.. can you please explain a bit further..

premise 1: Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks.
premise 2: all of the 10 students who attended the greatest number of concerts...

with the above info. how can one prove that
D. More than 6 participants attended at least 14 concerts during the course of the experiment.

it can be 5 ppl as well right!

i think the passage talks more about effects of music on human emotions than "numbers"

B could be right answer because the passage clearly says that "Each of the 200 participants attended at least 1 two-hour"

A and C were close. But still cannot be proved to be true. may/maynot be cases.

rest all choices are quite out of scope.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 09:50
premise 1: Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks.
premise 2: all of the 10 students who attended the greatest number of concerts...
premise 3: 20 students who attended the fewest number of concerts

Acc to premise 1, the fewest(least) number of concerts is 12 (atleast 1 concert per week over the course of 12 weeks)
Hence, the maximum no of concerts attended by the 10 students of premise 2 has to be atleast 14. Others will cme in intermediate state. (taking the worst case scenario, if the maximum is 14)
I hope it helps. Lets know the OA first.

selvae wrote:
hey ritula.. can you please explain a bit further..

premise 1: Each of the 200 participants attended at least 1 two-hour concert of classical music per week over the course of 12 weeks.
premise 2: all of the 10 students who attended the greatest number of concerts...

with the above info. how can one prove that
D. More than 6 participants attended at least 14 concerts during the course of the experiment.

it can be 5 ppl as well right!

i think the passage talks more about effects of music on human emotions than "numbers"

B could be right answer because the passage clearly says that "Each of the 200 participants attended at least 1 two-hour"

A and C were close. But still cannot be proved to be true. may/maynot be cases.

rest all choices are quite out of scope.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 10:22
IMO A.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 10:47
Completely agree with Ritula's explanation, I think the answer is D.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 14:01
Another D...Please post the OA.
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 21:18
Jeez! No words. What a Q is this? One Q such as this is good enough to spoil the whole exam :(
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 21:27
D by POE
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Re: CR-A recent research [#permalink] New post 04 Feb 2009, 21:30
not a really good question but you can easily eliminate A, B, C, & E leaving D to be the only reasonable inference.
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Re: CR-A recent research [#permalink] New post 05 Feb 2009, 01:55
Tough one!
OA is D.
Re: CR-A recent research   [#permalink] 05 Feb 2009, 01:55
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