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A manager at a local theme park has proposed doubling the

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A manager at a local theme park has proposed doubling the [#permalink] New post 22 Oct 2012, 03:54
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A manager at a local theme park has proposed doubling the number of attendants at the park's entrance gates, claiming the new attendants will alleviate line congestion. The manager reasons that, since the wait times at the entrance will be reduced from about thirty minutes to ten minutes, more people will visit the park, and the increased revenue will offset the cost of the extra attendants.

Which of the following statements, if true, provides the best evidence that the park manager's reasoning is flawed?

(A) People who leave the current long lines at the entrance already reduce wait times to some degree.

(B) The lines at attractions inside the park already make the average wait times inside considerably longer than those at the entrance.

(C) A majority of people who visit the park have season passes, allowing them to bypass the entrance.

(D) Many visitors opposing the plan have indicated that they prefer congestion at the entrance to potential overcrowding inside the park.

(E) Though the number of attendants will double under the manager's plan, the number of visitors might only increase by 25 percent.

[Reveal] Spoiler:
B is actually outside the scope as it talks about lines inside the park. Can some one explain this question. Thanks in advance.
[Reveal] Spoiler: OA

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Re: A manager at a local theme park - FLAW [#permalink] New post 22 Oct 2012, 04:22
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A manager at a local theme park has proposed doubling the number of attendants at the park's entrance gates, claiming the new attendants will alleviate line congestion. The manager reasons that, since the wait times at the entrance will be reduced from about thirty minutes to ten minutes, more people will visit the park, and the increased revenue will offset the cost of the extra attendants.

Which of the following statements, if true, provides the best evidence that the park manager's reasoning is flawed?

(A) People who leave the current long lines at the entrance already reduce wait times to some degree. Out Of Scope. We do not care about people who leave the lines. Our only concern is whether increasing attendants will increase traffic.

(B) The lines at attractions inside the park already make the average wait times inside considerably longer than those at the entrance. If this is true, it would mean that the people attending the theme park will still have to be waiting almost for the same amount of time as before. Only difference is that time that would have been spent waiting at the entrance previously will now be spent waiting at each attraction. So Answer.
(C) A majority of people who visit the park have season passes, allowing them to bypass the entrance. Out of scope. Our concern is only about the people waiting at the entrance.

(D) Many visitors opposing the plan have indicated that they prefer congestion at the entrance to potential overcrowding inside the park. Out of scope. Our concern is only about the waiting time and not congestion or overcrowding.

(E) Though the number of attendants will double under the manager's plan, the number of visitors might only increase by 25 percent. Wont necessarily weaken. The revenues from the tickets can be much greater than the salary for the attendees and hence even a small increase in revenue might easily set off the salaries paid.
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Re: A manager at a local theme park - FLAW [#permalink] New post 22 Oct 2012, 05:49
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I thought C was also in scope but it is talking about different kinds of people. We are concerned with the people that are queueing rather than those who are skipping with a bypass ticket.

If the question said that the majority of park goers have bypass tickets, then we would be talking
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Re: A manager at a local theme park has proposed doubling the [#permalink] New post 30 Jul 2014, 00:57
Hi
When you can bypass the entrance with season passes as in C there would not be congestion even in the first place with few attendants. The Manager's claim is that the congestion is at the entrance and waiting is at the entrance. If there is waiting inside the park then your additional manpower in the entrance does not reduce the waiting time there.Hence answer is B

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Re: A manager at a local theme park has proposed doubling the [#permalink] New post 30 Jul 2014, 06:17
MacFauz wrote:
A manager at a local theme park has proposed doubling the number of attendants at the park's entrance gates, claiming the new attendants will alleviate line congestion. The manager reasons that, since the wait times at the entrance will be reduced from about thirty minutes to ten minutes, more people will visit the park, and the increased revenue will offset the cost of the extra attendants.

Which of the following statements, if true, provides the best evidence that the park manager's reasoning is flawed?

(A) People who leave the current long lines at the entrance already reduce wait times to some degree. Out Of Scope. We do not care about people who leave the lines. Our only concern is whether increasing attendants will increase traffic.

(B) The lines at attractions inside the park already make the average wait times inside considerably longer than those at the entrance. If this is true, it would mean that the people attending the theme park will still have to be waiting almost for the same amount of time as before. Only difference is that time that would have been spent waiting at the entrance previously will now be spent waiting at each attraction. So Answer.
(C) A majority of people who visit the park have season passes, allowing them to bypass the entrance. Out of scope. Our concern is only about the people waiting at the entrance.

(D) Many visitors opposing the plan have indicated that they prefer congestion at the entrance to potential overcrowding inside the park. Out of scope. Our concern is only about the waiting time and not congestion or overcrowding.

(E) Though the number of attendants will double under the manager's plan, the number of visitors might only increase by 25 percent. Wont necessarily weaken. The revenues from the tickets can be much greater than the salary for the attendees and hence even a small increase in revenue might easily set off the salaries paid.


I am not sure on why D is marked as wrong. Basically the waiting time which is reduced at entrance would get added inside the park because of more visitors and this would be undesirable to many visitors
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Re: A manager at a local theme park has proposed doubling the [#permalink] New post 06 Apr 2015, 18:13
the answer to this is hidden in the part that says "many of the visitors opposing the plan"
Say there are 500000000000000000000000 visitors and only 10 of them oppose this plan. Out of these 9 say that they prefer longer lines outside that overcrowding inside and single person left does not like something else. This means that the sample taken may or may not be correct.

I think option D is not out of scope but has the above mentioned ambiguity that may not be 100% tight.
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A manager at a local theme park has proposed doubling the [#permalink] New post 06 Apr 2015, 21:10
Expert's post
sayansarkar wrote:
the answer to this is hidden in the part that says "many of the visitors opposing the plan"
Say there are 500000000000000000000000 visitors and only 10 of them oppose this plan. Out of these 9 say that they prefer longer lines outside that overcrowding inside and single person left does not like something else. This means that the sample taken may or may not be correct.

I think option D is not out of scope but has the above mentioned ambiguity that may not be 100% tight.


Yes the decision has to be between (B) and (D) because they deal with the same issue. We will look in detail at why (D) is wrong.

Plan:
- Double the number of attendants to reduce congestion at entrance gate.
- So more people will visit the park, and the increased revenue will offset the cost of the extra attendants

The logic is that if the congestion is less, more people will visit.

What will show that the reasoning is flawed?

(B) The lines at attractions inside the park already make the average wait times inside considerably longer than those at the entrance.
This is much more congestion inside the park so it is unlikely that more people will turn up. A bit of reduced congestion at the entrance is unlikely to attract them if inside they have to deal with much more congestion in any case. Also, if some more people do turn up expecting less congestion at the gate, it will only increase congestion at the attractions and hence the number of people might reduce again. Hence, this points out the flaw in the plan.

(D) Many visitors opposing the plan have indicated that they prefer congestion at the entrance to potential overcrowding inside the park.
Here there are multiple red flags - what do they mean by "many visitors"? Most visitors would have been much more convincing
Also focus on "potentialovercrowding inside". It doesn't tell you whether the park is overcrowded or not. Say, if there is no overcrowding right now and even if the visitors increase by 50%, still there is no overcrowding, then the plan will succeed. This option talks about a hypothetical case and doesn't tell us what the reality is. Option (B) tells us that actually there is already overcrowding and more people will only make it worse. So option (D) is incorrect and option (B) is correct.

Answer (B)
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A manager at a local theme park has proposed doubling the   [#permalink] 06 Apr 2015, 21:10
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