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Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time. INCORRECT. cost is out of scope
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.INCORRECT. negating the statement will not serve purpose.if university is able to contact mentors ,may be students will be arranged.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.INCORRECT. same as B
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.INCORRECT. even if mentors arrange to contact,no confirmation about how many students they arrange
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.CORRECT.
this shows ,the university fails to manage mentors and thus students decline.

ANS E
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Missing gap : There is no other way those 400 alumni would contribute to mentoring. What if, some don't need a phonethon, they voluntarily contact university.

A : How much it costs, doesn't matter. [Incorrect]
B : Provided another way. Showing doubt on the conclusion. Weakner option. [Incorrect]
C : Whether they would sign up in other university doesn't affect our conclusion. [Incorrect]
D : Comparison with other group of alumni wouldn't help here. [Incorrect]
E : Answer. If we negate break the conclusion.
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In My opinion, the answer is C. Let's see How

The author presents a premise- around 400 Alumini sign-up because of the phone-a-thon every year.

The author concludes that if we discontinue the phone-a-thon, the sign-up will not happen, and the number of alumni will decline by 400.

The question is asking what must be true reason on which the author concludes? What is the author's assumption?

Prethink- The author is assuming that the reason for sign-up is related to the phone-a-thon. And if this is discontinued, there won't be any sign-up by alumni as a mentor.

Now we will analyse the option choices and eliminate which is not in line with our work.

A. Cost for the phone-a thon is not related to our thinking. And it neither supports nor destroys the conclusion- Eliminate
B. It says the university would be able to contact alumni. But it doesn't say about the response of the alumni. Not enough reason for being a must be true.
C. No alumni who currently sign up would sign up because of other channels by the university, if the phone-a-thon is discontinued.

Negation of C says- if the phone-a-thon is discontinued, there is still a way through which the sign up will happen, and there will be some alumni who would be signing up as a mentor, there won't be a decline by 400.

This breaks the conclusion. Hence Keep it.

D. Other Alumni comparison is not relevant- Eliminate
E. We are concerned about alumni as a mentor, but this says mentors as a whole. Not relevant. Eliminate

Bunuel
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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The argument: the phone-a-thon attracts about 400 alumni each year, so if this is discontinue, about 400 alumni will not sign up anymore.

A. Incorrect. The phone-a-thon costs is irrelevant to the argument's conclusion about 400 alumni decline.
B. Incorrect. This weakens the argument as the university can still attract alumni through email.
C. CORRECT. Negate the statement => Many alumni would still sign up through other channels => the decline would be significantly less than 400
D. Incorrect. This is not neccessary for the argument.
E. Incorrect. Negate the statement => Other channels would be significantly more effective => There would be less decline. But we don't know if they attract many enough to make the decline significantly less than 400. C is stronger and necessary for the argument to hold.
Bunuel
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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Imo C ? negating C results in "many would....sign up through other outreach efforts..." which breaks the authors conclusion.

E feels like the trap choice: Wheiren you would not require other chanels to be "Signficantly more" effective, after all, they could remain just as effective and likely still get the mentors they need.
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Conclusion: If university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students would decline by 400.
Thus, it is assumed that either there are no other ways to contact these 400 alumni or the other ways would not be effective.

Lets analyse the options-

A: Argument does not talk about the cost. Irrelevant.
B, E: If anything, these statements weaken the argument by stating that the alumni can be contacted via other channels. Incorrect.
D: The negation of this statement would be that the alumni who sign up through phone-a-thon are substantially more likely than other alumni to sign up regardless of how they are contacted. Thus, this is a mild weakener as it doesn’t directly attack the conclusion.
C: The negation of this statement would be that Many alumni who currently sign up through phone-a-thon would sign up through other university outreach efforts. This destroys the conclusion.

Thus, C is our answer.
Bunuel
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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A - we are not worried about the financial appeal of the phone-a-thon. The conclusion focuses on mentor reduction by a certain number due to event discontinuation.

B - this is a weakener after all, if the emails prove to be effective in pulling in these mentors

C - this is a strengthener but not necessarily an assumption. We need not assume that only few would sign up through outreach efforts.

D - This is our assumption. If the alumni’s in question were more substantially more likely to sign up through other efforts, then the decline may be lesser than 400, as provided in the conclusion.

E - Even if the other sign up channels become effective, we are not sure if it will pull in the mentors who would have signed up through the phone-a-thon.

Therefore, Option D
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The main conclusion of the argument is if the university were to discontinue the phone a thon the number of alumni who sign up to mentor students each year would decline by about 400. As a context it is said that the phone a thon results in about 400 alumni signing up to mentor current students. So one key assumption is that the alumni registering for phone a thon is not likely to mentor other than this format. Let's look at options:

A. It is not an assumption since cost is irrelevant here.
B. Negate this , then it is saying that the university will not be able to contact alumni after discontinuation , which is not making the argument fall.
C. Not an assumption as it discuss about opportunities of alumni after discontinuation of program , irrelevant here.
D. It is an assumption since it matches our assumption. Negating also says that the alumni signed up through phone a thon are more likely substantially to sign up to mentor in any given year which is making the argument fall since it will not explain the 400 decrease.
E. It is not an assumption since others program comparison is irrelevant.

So Correct answer is D. :)
Quote:
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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Bunuel
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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This is an assumption question, so the answer choice must be true.

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
This need not be true, cost is not the main concern. Eliminate.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
We have no info about signups, mere contacting doesn't affect the argument. Eliminate.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
This must be true, negation, if significantly many alumni signup through other outreach efforts, then 400 decline may not happen. Keep.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
This doesn't affect the argument we are not comparing two groups, we don't have comparison with other methods. Eliminate.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.
This need not be true, even if the other channels become effective they may not be more effective than phoneathon, So 400 decline may happen regardless. Eliminate.


Correct Answer: C
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Bunuel
Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.

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This is an assumption question

Premise : In a typical year, phone-a-ton leads to about 400 alumni signing as mentor
Conclusion : if university discounts this them number of signups by alumni would decrease by 400 per year

We need necessary assumption to bridge the gap

Lets look at option E : Bingo! it is exactly what argument needs, because if this is false then discounting the phone-a-thon would not cause 400 signup every year

So our answer is E
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C) is correct. The argument states, that only a few alumni would apply as a mentor if there wouldn't be alumni phone-a-thon. That aligns with the presumtion from C) that 400 alumnis who applies through phone-a-thon must not simply signu another way
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In passage author concludes that phone-a-thon brings 400 alumni and stopping phone-a-thon will cause loosing 400 alumni.
Basic assumption that 400 alumni joined through phone-a-thon not through any other means otherwise they will not drop by 400.
Analyzing options:
1. Causing less lime will not mean they will not join if phone-a-thon is stopped. Not correct
2. Email option will be there but whether they will join that is not clear. Not correct
3. Few alumni will join through other means if phone-a-thon stopped. Seems correct as only few will use other, if at all majority of 400 used other means conclusion will not hold. Keep this option
4. How they sign up is not clear. Not clear. Keep this option
5. This compares different channels but whether why 400 alumni will not join is not clear.

Between option 3 & 4 option 3 is correct as it explains that only few will go to other option and majority will not join if Phone-a-thon is stopped.

Correct answer is C.
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The paragraph conclusion assumes that the roughly 400 sign-ups attributable to the phone-a-thon would not be replaced through other channels if the phone-a-thon were discontinued. If many of those alumni would instead sign up via other outreach, the decline would be less than 400 hence undermining the argument's conclusion.
For A,B and D the email, relative likelihood seem irrelevant.
For E it is related but C more directly captures the necessary assumption that prevents offsetting sign-ups through other efforts. my choice was C
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Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Conclusion is - without the phone a thon lesser than 400 alumni will sign up to mentor by any means.

Which of the following is an assumption on which the argument depends?

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time. - value is not the point here.
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued. -even though university is not able to contact, alumni may or may not sign up.
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued. - lesser alumni will sign up. On negating the statement-> exact alumni will sign up anyway through another method - breaks the conclusion. Hence, answer
D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted. - could be the answer if better option is not available.
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued. - more attracting channels may or may not lead to 400 sign ups. Upon negation it does not break the conclusion.
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Each spring, Northbridge University, runs a weeklong alumni phone-a-thon.
In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students.

Conclusion: Therefore, if the university were to discontinue phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

Objective: Find the assumption

Thinking: - If assumption is negated, the conclusion falls apart. (Negation Test)
It is assumed that the alumni who sign up to mentor students would decline if the university were to discontinue phone-a-thon.

Options:

A. The argument is not concerned with university costing and alumni mentors' time. What if phone-a-thon is to discontinue ? Will number of alumni decline? The statement has to relation with the conclusion. Incorrect

B. If the statement is negated e.g. the university would not be able to contact alumni through email if phone-a-thon were discontinued, then the conclusion that the number of alumni would decline does not fall apart and may hold true. (Negation Test is failed) Incorrect

C. Few alumni would sign up though other university outreach program if phone-a-thon were discontinued. If statement is negated, e.g. many alumni would sign up though other university outreach program, then the number of alumni would not decline and the conclusion falls apart (Negation Test is passed.) Correct

D. The conclusion is concerned with only 400 alumni who sign up by phone-a-thon and the comparison with other alumni is not needed. Incorrect

E. The argument is not about effectiveness of other mentoring sign-up channels, but is concerned with the behaviour of 400 alumni who sign-up via phone-a-thon.
Incorrect

IMO C
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IMO E!

A) We are not talking about costs
B) Irrelevant, since there is a substantial decline because of the phone
C) Irrelevant
D) The "regardless of how they are contacted" does not help here because we are focused on the phone
E) It assumes that the other channels of attraction of mentors are not improving, hence it explains how the decline of 400 alumni is very close to the 400 alumni acquired via phone-a-thon
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Each spring, Northbridge University runs a weeklong alumni phone-a-thon. In a typical year, the phone-a-thon results in about 400 alumni signing up to mentor current students. Therefore, if the university were to discontinue the phone-a-thon, the number of alumni who sign up to mentor students each year would decline by about 400.

The conclusion of argument is that stopping the phone a thon would cause about 400 fewer alumni to sign up as mentors.And this conclusion only holds when those 400 alumni would not sign up through other means like email or other way once the phonea thon is gone.

A. The phone-a-thon costs the university less than the value of 400 alumni mentors’ time.
(This is not related to alumni signing up or not) Wrong
B. The university would still be able to contact alumni through email if the phone-a-thon were discontinued.
(This only say that email is possible but it doesn't say they will definitely sign up by email) Wrong
C. Few alumni who currently sign up to mentor through the phone-a-thon would sign up through other university outreach efforts if the phone-a-thon were discontinued.
(If this option were false, then many many of alumni would still sign up anyway and discontinuing the phone-a-thon would not reduce the total number of mentors) Correct

D. The alumni who sign up to mentor through the phone-a-thon are not substantially more likely than other alumni to sign up to mentor in any given year, regardless of how they are contacted.
(This only talks about likelihood of alumni sign up by different way contacted) Wrong
E. The university’s other mentoring sign-up channels would not become significantly more effective at attracting mentors if the phone-a-thon were discontinued.
(Discusses about other channels if phone a thon were discontinued, C is a better option than this one) Wrong
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