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23 Mar 2022, 05:05
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
43% (02:12) correct
57%
(02:17)
wrong
based on 325
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The Bolostus minatosis virus is usually fatal to humans unless treatment begins within the seven-day incubation period of the virus. A doctor can administer a blood test that will identify with 99 percent accuracy whether someone has contracted the virus, but the blood sample must be sent to a laboratory for analysis, a process that requires four days to complete. A new testing device analyzes a breath sample to identify the presence of the virus, and it performs the analysis instantaneously. Clearly, replacing the traditional blood test by making the breath analysis device available in all doctors' offices would reduce the number of fatalities caused by the B. minatosis virus.
The answer to which of the following questions would be LEAST useful in evaluating the claim made in the argument above?
(A) What proportion of people contracting B. minatosis undergo testing within three days of contracting the virus?
(B) What proportion of people contracting B. minatosis survive if they receive treatment during the incubation period of the virus?
(C) Is any specialized knowledge or training required to operate the breath analysis device or interpret its analysis?
(D) How accurate is the breath analysis device in identifying people who have contracted the B. minatosis virus?
(E) Does the survival rate for the virus depend on how soon within the incubation period a patient receives treatment?
The answer to which of the following questions would be LEAST useful in evaluating the claim made in the argument above?
(A) What proportion of people contracting B. minatosis undergo testing within three days of contracting the virus?
(B) What proportion of people contracting B. minatosis survive if they receive treatment during the incubation period of the virus?
(C) Is any specialized knowledge or training required to operate the breath analysis device or interpret its analysis?
(D) How accurate is the breath analysis device in identifying people who have contracted the B. minatosis virus?
(E) Does the survival rate for the virus depend on how soon within the incubation period a patient receives treatment?
05 Apr 2022, 23:29
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Hoozan
The virus is fatal if detected after 7 days.
If detected within 7 days, the person may survive.
Blood test takes 4 days (so the person needs to get it done within first 3 days to survive)
A new test gives result instantaneously.
Conclusion: Replacing the blood test by making the breath analysis device available will reduce fatalities.
What will not help evaluate this claim (will fatalities reduce if the new test is made available in doctor's offices?)
(A) What proportion of people contracting B. minatosis undergo testing within three days of contracting the virus?
This will help evaluate the claim. If 100% people already undergo testing within 3 days (because say they are educated about the rare circumstances that leads to contracting the virus), then making the new test available will not reduce fatalities. If a low percentage of people come in the first 3 days and many come in the first 7 days, then the test will save lives.
(B) What proportion of people contracting B. minatosis survive if they receive treatment during the incubation period of the virus?
We are given that there is a survival rate if treatment begins in 7 days. This survival rate is greater than 0%. Now whether it is 10% or 80%, does it matter? 'Some' lives would be saved in either case.
(C) Is any specialized knowledge or training required to operate the breath analysis device or interpret its analysis?
This will help in evaluating whether lives will be saved. The argument claims that making the device available will save lives but if specialised training is required, docs & nurses may not be able to use the device even if it is available. If no specialised training is required then it may save lives.
(D) How accurate is the breath analysis device in identifying people who have contracted the B. minatosis virus?
This will help in evaluating whether lives will be saved. If the breath analyser is only 25% effective say, then the 99% effective blood test might give better results regarding number of lives saved.
(E) Does the survival rate for the virus depend on how soon within the incubation period a patient receives treatment?
This too will help in evaluating whether lives will be saved. If the survival rate does depend on how soon treatment is given, the instant test is likely to save lives.
Answer (B)
General Discussion
04 Apr 2022, 22:25
Kudos
Bookmarks
I was confused between (B) and (C) in this question. Can someone please help to tell the difference between the two:
My argument Analysis: MB disease is fatal, unless its treatment starts within 7 days of the virus incubation period. Traditional blood test method is accurate 99% of the time, but it takes 4 days for the receival of the results. A newly developed method involves just a breath sample and the analysis is completed.
Conclusion : More fatalities can be prevented by the breath sampling method than Blood test method.
Option (B) and (C) both, I believe do not help us in evaluation of the argument.
Since our only time frame is within the detection of the exam in the first week (given theat the MB disease is fatal post 7 days of incumbation period), knowing the propotion of people who survived and received the treatment withing the first week would not help. Given that the number of fatalities will remain the same if the disease is detected after 7 days, and will remain the same also if the disease is detected during the incubation period. In option (B), the only way such a statistics will help is if suppose the person with MB disease goes to the hospital 3 days after the disease has infected the person, and hence then if we have the breath apparatus, it will help in reducing the number of fatalities. This explaination is nothing but option (A).
The same is the reason for option (C) the training is completely irrelevant for the reduction in the fatalities. Only affect this argument will have will only be that instead of the reduction in the number of fatalities which would happen at the "t" day, will probably will lead to "t+10" day
KarishmaB Sajjad1994 nightblade354 carouselambra GMATNinja
Kindly please help me explain where have I made my error in my explaination
My argument Analysis: MB disease is fatal, unless its treatment starts within 7 days of the virus incubation period. Traditional blood test method is accurate 99% of the time, but it takes 4 days for the receival of the results. A newly developed method involves just a breath sample and the analysis is completed.
Conclusion : More fatalities can be prevented by the breath sampling method than Blood test method.
Option (B) and (C) both, I believe do not help us in evaluation of the argument.
Since our only time frame is within the detection of the exam in the first week (given theat the MB disease is fatal post 7 days of incumbation period), knowing the propotion of people who survived and received the treatment withing the first week would not help. Given that the number of fatalities will remain the same if the disease is detected after 7 days, and will remain the same also if the disease is detected during the incubation period. In option (B), the only way such a statistics will help is if suppose the person with MB disease goes to the hospital 3 days after the disease has infected the person, and hence then if we have the breath apparatus, it will help in reducing the number of fatalities. This explaination is nothing but option (A).
The same is the reason for option (C) the training is completely irrelevant for the reduction in the fatalities. Only affect this argument will have will only be that instead of the reduction in the number of fatalities which would happen at the "t" day, will probably will lead to "t+10" day
KarishmaB Sajjad1994 nightblade354 carouselambra GMATNinja
Kindly please help me explain where have I made my error in my explaination
