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A study of 200 comedy fiction readers revealed the impact of Wodehouse

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A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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13 Mar 2014, 09:27
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55% (hard)

Question Stats:

67% (02:24) correct 33% (02:35) wrong based on 295 sessions

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A study of 200 comedy fiction readers revealed the impact of Wodehouse’s’ novels on human emotions. Each of the 200 participants was asked to read at least one novel per day over the course of 12 days. At the end of the experiment, all of the readers filled out a survey assessing their emotional state. It was found from the survey that some 10 students who read the greatest number of novels reported lower stress levels and higher energy levels. Also, most of the 20 students who read the fewest number of novels revealed below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?

A: A majority of the participants lowered stress levels and reported higher emotional ease.

B: During each week of the experiment, the participants spent at least 2 hours less per day on their academic work as a result of reading.

C: Reading Wodehouse’s novels for at least 2 hours per day improves the emotional well-being of the majority of young adults.

D: More than 8 participants read at least 14 novels during the course of the experiment.

E: At least some of the students participated in the study in order to gain free access to Wodehouse’s novels.

Verbal Diagnostic Test No : 6 – CR Q No: 8

OA: D
OE:
A: There is no such information in the stimulus
B: There is no mention that they read during their academic hours. They could have done so in their leisure hours.
C: We cannot generalize for the group of young adults entirely based on a sample experiment 200 people
D: Correct Answer. The least read was 12, the maximum 14 and the others 170 read 13 novels. So we can safely conclude that more than 8 people say 9 or 10 read at least 14 novels.
E: Irrelevant

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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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13 Mar 2014, 16:55
A: A majority of the participants lowered stress levels and reported higher emotional ease.
No specific mention of the word "majority," key word to test.

B: During each week of the experiment, the participants spent at least 2 hours less per day on their academic work as a result of reading.
"At least two hours" has no specific mention.

C: Reading Wodehouse’s novels for at least 2 hours per day improves the emotional well-being of the majority of young adults.
"Majority" and "young adults" are key words to test. No mention in stimulus.

D: More than 8 participants read at least 14 novels during the course of the experiment.
20 students have the lowest scores and 10 students have the highest scores, thus 170 students must have read more than 12 books and fewer than 14 books. Therefore, the highest scorers (8,9,10) must have read at least 14 books.

E: At least some of the students participated in the study in order to gain free access to Wodehouse’s novels.
Intention of reading is nowhere mentioned in the stimulus.
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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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13 Mar 2014, 22:13
I marked D because the other options are completely absurd. But, I don't know how is D correct? Where did 14 come from?
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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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17 Mar 2014, 21:30
gmatter0913 wrote:
I marked D because the other options are completely absurd. But, I don't know how is D correct? Where did 14 come from?

This is how I arrived at the conclusion hope this helps.

Premise X: Also, most of the 20 students who read the fewest number of novels revealed below-average levels of emotional comfort.

Premise Y: that some 10 students who read the greatest number of novels reported lower stress levels and higher energy levels

Premise Z: Each of the 200 participants was asked to read at least one novel per day over the course of 12 days

D: More than 8 participants read at least 14 novels during the course of the experiment.

Now using X and Z we can conclude that 20 people read atleast 1 novel per day over the course of 12 days. Since X also says that "most of the 20 students who read the fewest ..." the number of students who read the least is 20.

Using X, Y and Z, you will see 3 lists... Greatest number of novels read, some middle group, least number of novels read. Which means worst case scenario 10(greatest read ~should be a number greater than the number that the middle group seems to have read), some middle group(~number of books read should be a number greater than 12, 20(least read ~12 books). If there is a greatest number and there is a least number and their total doesnt add up to 200 then there MUST BE A MIDDLE GROUP

Therefore option D fits directly into this conclusion we come across. Hope this answers your question
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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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20 Jun 2014, 05:12
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KUDOS to daagh for putting this question for discussion

[2:17] - worked by eliminating...

but just to know if I understood the problem right reason:

From the premise :
200 - readers who read 1 book @ day for 12 days -- at least 12 novels each for 200 readers
20 fewest numbers blah.. blah.. -- they must have read 12 novels (that's the min), so rest 180 has to be over 12 novels
10 highest .. -- so if 180 readers read 13 novels or more then these 10 (to be highest) must have read 14 (at least)

The only assumption i took - no one reads half a novel

kudos awaits for pointing my error.

Thanks

daagh wrote:
A study of 200 comedy fiction readers revealed the impact of Wodehouse’s’ novels on human emotions. Each of the 200 participants was asked to read at least one novel per day over the course of 12 days. At the end of the experiment, all of the readers filled out a survey assessing their emotional state. It was found from the survey that some 10 students who read the greatest number of novels reported lower stress levels and higher energy levels. Also, most of the 20 students who read the fewest number of novels revealed below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?

A: A majority of the participants lowered stress levels and reported higher emotional ease.
B: During each week of the experiment, the participants spent at least 2 hours less per day on their academic work as a result of reading.
C: Reading Wodehouse’s novels for at least 2 hours per day improves the emotional well-being of the majority of young adults.
D: More than 8 participants read at least 14 novels during the course of the experiment.
E: At least some of the students participated in the study in order to gain free access to Wodehouse’s novels.

OA: D
OE:
A: There is no such information in the stimulus
B: There is no mention that they read during their academic hours. They could have done so in their leisure hours.
C: We cannot generalize for the group of young adults entirely based on a sample experiment 200 people
D: Correct Answer. The least read was 12, the maximum 14 and the others 170 read 13 novels. So we can safely conclude that more than 8 people say 9 or 10 read at least 14 novels.
E: Irrelevant

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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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21 Mar 2016, 18:38
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daagh wrote:
A study of 200 comedy fiction readers revealed the impact of Wodehouse’s’ novels on human emotions. Each of the 200 participants was asked to read at least one novel per day over the course of 12 days. At the end of the experiment, all of the readers filled out a survey assessing their emotional state. It was found from the survey that some 10 students who read the greatest number of novels reported lower stress levels and higher energy levels. Also, most of the 20 students who read the fewest number of novels revealed below-average levels of emotional comfort.

Which of the following must be true based on the evidence presented above?

A: A majority of the participants lowered stress levels and reported higher emotional ease.
B: During each week of the experiment, the participants spent at least 2 hours less per day on their academic work as a result of reading.
C: Reading Wodehouse’s novels for at least 2 hours per day improves the emotional well-being of the majority of young adults.
D: More than 8 participants read at least 14 novels during the course of the experiment.
E: At least some of the students participated in the study in order to gain free access to Wodehouse’s novels.

this is a must be true question..we must select an answer choice that is 100% true based on the info given in the argument.

A. not really. we only know that top 20 lowered stress level and reported higher energy levels. nothing about emotional ease.
B. no, we are told that at least 1 novel per day...not how many hours..so out.
C. not really...we cannot conclude that.
D. yes!!! so at least 12 books were read...suppose 20 students read 12 books only. we cannot have fewer..since 12 is the minimum. in this case, 180 read 13+. but if all read 13, then we would not have 10 students who read the greatest number of novels...it can be concluded that 10 students read more than 13 books. in this case, 8 read at least 14 books is always true. so D is the correct answer.
E. gives new info, which never is correct in this type of questions.
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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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29 Nov 2017, 15:31
the answer is D. There are many similar questions that use the same pattern in this question; the pattern here is the number of novels and the number of readers.
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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse  [#permalink]

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19 Dec 2018, 19:10
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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).

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Re: A study of 200 comedy fiction readers revealed the impact of Wodehouse   [#permalink] 19 Dec 2018, 19:10
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