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A nutritionist studying the effects of massive doses of

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Re: CR-Vitamin C And Flu [#permalink] New post 04 Sep 2011, 18:06
(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.
(B) Vitamin C is helpful in preventing disease.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.
(D) Massive doses of vitamin C can help to prevent serious case of flu.
(E) A balanced diet contains less than 250 mg of vitamin C.


I say D.

A. its not in direct proportion bc the people who just ate regular food had lower flu rates than people who consumed the standard C. we do not know if the people's diets had more or less or even the standard amt of C so nothing about proportions is known or predicted.
b. really vague , so this leaves too much room to stick to any hypotheses.
c. this is too narrow. the math is solid but would you really hypothesize this?
d.this is general and true. and if you are a CR veteran you know that CR loves a dumbed down but true answer. so just go with it.
e. we have no way of knowing or hypothesizing this.
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Re: CR-Vitamin C And Flu [#permalink] New post 04 Sep 2011, 21:47
bholakc wrote:
A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

Which of the following hypotheses is best supported by the evidence above?

(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.
(B) Vitamin C is helpful in preventing disease.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.
(D) Massive doses of vitamin C can help to prevent serious case of flu.
(E) A balanced diet contains less than 250 mg of vitamin C.
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Re: CR-Vitamin C And Flu [#permalink] New post 06 Sep 2011, 00:28
D
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Re: CR-Vitamin C And Flu [#permalink] New post 12 Sep 2011, 08:54
Expert's post
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Re: CR-Vitamin C And Flu [#permalink] New post 13 Sep 2011, 11:08
Between D and C I go for D. C is way too narrow as mentioned above.
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Re: CR-Vitamin C And Flu [#permalink] New post 13 Sep 2011, 23:44
Negation of D weakens the fact set strongly.
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Re: CR-Vitamin C And Flu [#permalink] New post 14 Sep 2011, 00:51
VIKASMM wrote:
Negation of D weakens the fact set strongly.



I will go for D. but i have seen this question in CR1000 and its more of LSAT and not GMAT type.
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Re: CR-Vitamin C And Flu [#permalink] New post 15 Sep 2011, 00:20
E is out of scope. D is the answer.
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Re: CR-Vitamin C And Flu [#permalink] New post 15 Sep 2011, 01:48
I went for A.

A big mistake. Now i see why it is D.
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Re: CR-Vitamin C And Flu [#permalink] New post 15 Sep 2011, 01:55
bholakc wrote:
A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

Which of the following hypotheses is best supported by the evidence above?

(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.
(B) Vitamin C is helpful in preventing disease.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.
(D) Massive doses of vitamin C can help to prevent serious case of flu.
(E) A balanced diet contains less than 250 mg of vitamin C.


Answer D.
A --> not true
B --> out of scope
C --> exagerration
D --> true
E --> out of scope
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Re: CR-Vitamin C And Flu [#permalink] New post 20 Sep 2011, 01:22
CLearly answer is D...
D correctly hypotheses the evidence provided in the argument. however my confusion about the question type mentioned. Is this find the assumption question or find the conclusion question.

Looking at the argument I am not able to find the conclusion. so I feel that it is find the conclusion question.
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Re: CR-Vitamin C And Flu [#permalink] New post 27 Sep 2011, 02:01
bholakc wrote:
A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

Which of the following hypotheses is best supported by the evidence above?

(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.
(B) Vitamin C is helpful in preventing disease.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.
(D) Massive doses of vitamin C can help to prevent serious case of flu.
(E) A balanced diet contains less than 250 mg of vitamin C.


bholakc, can you please post the OA.
I got D.
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 23 Jan 2012, 19:56
A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

Which of the following hypotheses is best supported by the evidence above?
(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.
(B) Vitamin C is helpful in preventing disease.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent.
(D) Massive doses of vitamin C can help to prevent serious case of flu.
(E) A balanced diet contains less than 250 mg of vitamin C.

C is the correct answer.
Although, I'm not entirely sure why C is correct, let me try to explain why the other options are wrong.

(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.-----effectiveness is greater in ppl who do not take Vit.C than in people who take 250mg. Hence, false. Not is direct proportion to the amount of VC taken.
(B) Vitamin C is helpful in preventing disease. Nothing is said about that in the passage. Rather, effects of VC Vs incidence in different groups.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent. Keep it aside.
(D) Massive doses of vitamin C can help to prevent serious case of flu. If massive implies 1500mg, then there are still 9% serious cases of flu. Hence, does NOT prevent serious cases of flu.
(E) A balanced diet contains less than 250 mg of vitamin C. Irrelevant.
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 24 Jan 2012, 01:35
D is clear
nikhilsamuel89
(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken.-----effectiveness is greater in ppl who do not take Vit.C than in people who take 250mg. Hence, false. Not is direct proportion to the amount of VC taken.
(B) Vitamin C is helpful in preventing disease. Nothing is said about that in the passage. Rather, effects of VC Vs incidence in different groups.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent. Keep it aside. fewer than 9% does not mean exactly 9% so we can't talk for sure of exactly 25% decrease
(D) Massive doses of vitamin C can help to prevent serious case of flu. If massive implies 1500mg, then there are still 9% serious cases of flu. Hence, does NOT prevent serious cases of flu. But can help to prevent - that's the question
(E) A balanced diet contains less than 250 mg of vitamin C. Irrelevant.
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 24 Jan 2012, 07:09
all other options other than D are not related to the question statement,,,
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 25 Jan 2012, 09:27
+1 D
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 25 Jan 2012, 10:33
D is the best answer
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Re: A nutritionist studying the effects of massive doses of [#permalink] New post 27 Jan 2012, 16:20
Agree with D
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Re: CR-Vitamin C And Flu [#permalink] New post 03 Feb 2012, 04:17
bholakc wrote:
A nutritionist studying the effects of massive doses of vitamin C found that of a group of 600 people who regularly took 1,500 mg of vitamin C daily for a year, fewer than 9 percent suffered serious cases of flu; of a group of 600 people who took 250 mg of vitamin C (the standard recommended daily allowance) daily for a year, 34 percent suffered at least one serious case of flu; and of a group of 600 people who took no vitamin C for a year (other than that found in the foods in a balanced diet), 32 percent suffered at least one serious case of flu.

Which of the following hypotheses is best supported by the evidence above?

(A) The effectiveness of vitamin C in preventing serious cases of flu increases in direct proportion to the amount of vitamin C taken. Data presented in premise doesn't show a proportional relationship btw intake of vit C and serious flu cases
(B) Vitamin C is helpful in preventing disease. could be kept as a contender though stimulus doesn't state tht Vit C prevents diseases. It just mentions abt correlation btw two.
(C) Doses of vitamin C that exceed the standard recommended daily allowance by 500 percent will reduce the incidence of serious cases of flu by 25 percent. accd to stimulus for 500% increase, reduction is 1- (34-9/34) = 9/34 , less thn 25%
(D) Massive doses of vitamin C can help to prevent serious case of flu. could be true but we donot know what is the amt massive doses correspond to. Kept as contender
(E) A balanced diet contains less than 250 mg of vitamin C.out of scope


thus out of B and D, D sounds more appropriate based on stimulus
Re: CR-Vitamin C And Flu   [#permalink] 03 Feb 2012, 04:17
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