A recent research study of undergraduate students analyzed : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 20 Feb 2017, 08:24

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# A recent research study of undergraduate students analyzed

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:

### Hide Tags

Manager
Joined: 25 Jul 2010
Posts: 141
Followers: 1

Kudos [?]: 399 [2] , given: 29

A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

02 Oct 2010, 10:00
2
KUDOS
2
This post was
BOOKMARKED
00:00

Difficulty:

95% (hard)

Question Stats:

44% (02:45) correct 56% (01:55) wrong based on 171 sessions

### HideShow timer Statistics

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.
[Reveal] Spoiler: OA

Last edited by Skywalker18 on 05 Jan 2017, 11:23, edited 1 time in total.
If you have any questions
you can ask an expert
New!
Senior Manager
Status: Time to step up the tempo
Joined: 24 Jun 2010
Posts: 408
Location: Milky way
Schools: ISB, Tepper - CMU, Chicago Booth, LSB
Followers: 8

Kudos [?]: 199 [1] , given: 50

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

02 Oct 2010, 10:16
1
KUDOS
Orange08 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.
Possible candidate.

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.
This certainly cannot be inferred. Option eliminated.

c) Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.
Could be true again not a must be true type option.

d) More than 6 participants attended at least 14 concerts during the course of the experiment.
Possible candidate.
e) At least some of the students participated in the study in order to gain free access to classical concerts.
This certainly cannot be inferred. Option eliminated.

To choose between A and D.

Option A: Among the 200 students we have the data only for the top 10 and bottom 20. However it is not clear with the data about the rest of the 180 students who form the majority. Hence this option is ruled out.

Option D wins.
_________________

Support GMAT Club by putting a GMAT Club badge on your blog

Moderator
Status: battlecruiser, operational...
Joined: 25 Apr 2010
Posts: 983
Schools: Carey '16
GMAT 1: Q V
Followers: 12

Kudos [?]: 162 [0], given: 71

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

02 Oct 2010, 18:03
D ftw
_________________
Manager
Joined: 07 Jan 2010
Posts: 147
Location: So. CA
WE 1: 2 IT
WE 2: 4 Software Analyst
Followers: 2

Kudos [?]: 72 [0], given: 57

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

03 Oct 2010, 21:43
Got D too, whats the OA?
Intern
Joined: 13 Mar 2007
Posts: 25
Followers: 0

Kudos [?]: 26 [0], given: 2

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 02:35
IMO A. What's the OA?
Manager
Joined: 06 Aug 2010
Posts: 224
Location: Boston
Followers: 3

Kudos [?]: 185 [2] , given: 5

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 04:52
2
KUDOS
Orange08 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.

(D) is the only one which makes sense, but I don't really like it. The logic is that everyone was required to attend at least 12 concerts. They then differentiate between the 20 who attended the fewest, the 10 who attended the most, and the 170 who are in between. So, at the very least, the 20 who attended the fewest went to the bare minimum 12 concerts, while the other 180 all went to 13 or more concerts. Since they distinguish the specific 10 who went to the MOST concerts, these 10 must have gone to at least 14.

You can also arrive at this from process of elimination. The other four clearly don't fit the MUST be true criteria. For A, you don't know what their original emotional states/stress levels were, so you can't determine that they decreased - perhaps they all went up! For B, you don't know whether the participants set aside work time for the concerts or just used their spare time that would have been spent playing Playstation. For C, like A, you can't draw the conclusion, especially with the qualifier "the majority". And E is just totally off base.
Manager
Joined: 22 Jun 2010
Posts: 212
Followers: 1

Kudos [?]: 111 [0], given: 13

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 06:02
Orange08 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.

Certainly D is the OA.
A: how can we talk about the MOST of ...?
B: they might have compensate the academic time by eliminating some other stuff ,
C: majority is not right
D: OK
E: this could (not must) be true, don't fall for it.
Manager
Joined: 21 Oct 2007
Posts: 204
GRE 1: 1250 Q780 V540
Followers: 5

Kudos [?]: 69 [1] , given: 16

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 07:38
1
KUDOS
Orange08 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. Stimulus doesn't say that most of the students improved, in fact it never talked about the improvement overall... all it said is about the levels of 10 and 20 students our of 200 participated... so eliminated

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.stimulus did not talk about the academic work, so eliminated

c) Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.Again, Stimulus doesn't talk about this in general, it only mentions about state of 10 and 20 students from the pool of 200... so eliminated

d) More than 6 participants attended at least 14 concerts during the course of the experiment.Stimulus says 12 hours is minimum for all 200 folks, and each session is 2 hour length... so, the next greatest number of hours is 14... and we see that at least 10 folks (which is greater than 6 in this answer) have taken the greatest number of hours... So, this can not be eliminated

e) At least some of the students participated in the study in order to gain free access to classical concerts.again, nowhere stimulus talks about the cost of the program, so eliminated

_________________

If you like my post, please press Kudos+1

Manager
Joined: 21 Oct 2007
Posts: 204
GRE 1: 1250 Q780 V540
Followers: 5

Kudos [?]: 69 [0], given: 16

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 07:45
I can also observe something from the stimulus... this passage never talked about the total results, only talked about the statistics based on some part of the participants. so, I believe, we can eliminate the answers that would have a summary/conclusion about the total results...

what say? Is my reasoning correct?
_________________

If you like my post, please press Kudos+1

Moderator
Status: battlecruiser, operational...
Joined: 25 Apr 2010
Posts: 983
Schools: Carey '16
GMAT 1: Q V
Followers: 12

Kudos [?]: 162 [0], given: 71

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

04 Oct 2010, 12:10
D
_________________
Manager
Joined: 25 Jul 2010
Posts: 175
WE 1: 4 years Software Product Development
WE 2: 3 years ERP Consulting
Followers: 7

Kudos [?]: 50 [0], given: 15

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

07 Oct 2010, 08:05
I got two great explanations after jumping thru couple of links on the web. Hope this helps.

This definitely a mathematical question :D.

-----------------------------------------------------------------------------------------------------------
If 20 partecipants-> fewest n° of Cons (that means 12) and 10 partecipants-> greatest n° of Cons, follows that should be a median, let's say that this median is 13 (the lowest median possible), simple consequence indicates that the greatest is at least 14.
So ten students follows 14 or more concerts -> "More than 6 participants attended at least 14 concerts during the course of the experiment."
-----------------------------------------------------------------------------------------------------------
This is a weird question. I basically used process of elimination to choose D. Then I proved. Now this might not be the best way but here's how.

I: The concerts were over a 12 week period
II: "Each of the 200 participants attended at least 1 two-hour concert of classical music per week" This means that there were more than than 1 classical musical concert a week. Let's just say there were 2. Now we have 24 concerts for the entire semester.
III:"all of the 10 students who attended the greatest number of concerts reported lower stress levels" What this tells you is that 10 students attended more than 1 concert a week. If they attended just one more it would be 13, but I'm assuming they attended 2-4 more. Sometimes you have to assume just so long as it not a stretch.

Therefore, this ten students attended 14 or more concerts. Which is D.
-----------------------------------------------------------------------------------------------------------
_________________

Manager
Joined: 25 Jul 2010
Posts: 175
WE 1: 4 years Software Product Development
WE 2: 3 years ERP Consulting
Followers: 7

Kudos [?]: 50 [0], given: 15

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

07 Oct 2010, 08:07
Orange08 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. Stimulus doesn't say that most of the students improved, in fact it never talked about the improvement overall... all it said is about the levels of 10 and 20 students our of 200 participated... so eliminated

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.stimulus did not talk about the academic work, so eliminated

c) Listening to classical music for at least 2 hours per week improves the emotional well-being of the majority of young adults.Again, Stimulus doesn't talk about this in general, it only mentions about state of 10 and 20 students from the pool of 200... so eliminated

d) More than 6 participants attended at least 14 concerts during the course of the experiment.Stimulus says 12 hours is minimum for all 200 folks, and each session is 2 hour length... so, the next greatest number of hours is 14... and we see that at least 10 folks (which is greater than 6 in this answer) have taken the greatest number of hours... So, this can not be eliminated

e) At least some of the students participated in the study in order to gain free access to classical concerts.again, nowhere stimulus talks about the cost of the program, so eliminated

You say that "and each session is 2 hour length... so, the next greatest number of hours is 14". why cant the next greater number be 13.
_________________

Manager
Joined: 26 Mar 2010
Posts: 125
Followers: 2

Kudos [?]: 9 [0], given: 17

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

08 Oct 2010, 01:30
OA Pls?
Manager
Joined: 25 Jul 2010
Posts: 141
Followers: 1

Kudos [?]: 399 [0], given: 29

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

09 Oct 2010, 01:20
OA is D.
GMAT Club Legend
Joined: 01 Oct 2013
Posts: 10613
Followers: 938

Kudos [?]: 206 [0], given: 0

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

06 Jun 2015, 06:13
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
GMAT Club Legend
Joined: 01 Oct 2013
Posts: 10613
Followers: 938

Kudos [?]: 206 [0], given: 0

Re: A recent research study of undergraduate students analyzed [#permalink]

### Show Tags

28 Sep 2016, 02:33
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Re: A recent research study of undergraduate students analyzed   [#permalink] 28 Sep 2016, 02:33
Similar topics Replies Last post
Similar
Topics:
4 *700* A recent research study of undergraduate students 6 11 Apr 2015, 22:07
40 A recent research study of undergraduate students analyzed 18 04 Aug 2012, 14:09
A recent research study of undergraduate students analyzed 14 04 Feb 2009, 02:45
6 A recent research study of undergraduate students analyzed 8 28 Jul 2008, 11:25
A recent research study of undergraduate students analyzed 3 21 May 2008, 06:57
Display posts from previous: Sort by

# A recent research study of undergraduate students analyzed

 new topic post reply Question banks Downloads My Bookmarks Reviews Important topics

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.