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prosthetic bone

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Manager
Manager
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Joined: 28 Sep 2011
Posts: 206
GMAT 1: Q V
Followers: 1

Kudos [?]: 32 [0], given: 5

Re: prosthetic bone [#permalink] New post 27 Feb 2012, 13:16
Conclusion: Custom replacements should still be cost-effective.

A. This only compares the additional benefits that you get from a custom prosthetic bone replacement. However, we are trying to compare the cost of switching to a custom bone replacement to its benefits (ie. reduced surgery and recovery time etc.). Therefore, this answer cannot be correct.

B. We are not concerned with how much the cost of the custom replacement has declined because this should already be taken into account in the argument.

C. This is the correct answer. The reason is because the answer to this statement will tell you how often you will need repeat surgeries and this will reduce the benefit you get from switching to the prosthetic bone replacement. Also, you can try using the Variance Test and you should arrive to the same conclusion.

D. We are not concerned with the manufacturing

E. This states something that will occur in the future, but we are concerned with how the custom replacement will affect us now.
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Joined: 30 Sep 2012
Posts: 12
Location: India
Concentration: Strategy, Finance
GMAT 1: 680 Q49 V32
Followers: 0

Kudos [?]: 16 [0], given: 4

Re: prosthetic bone [#permalink] New post 02 Oct 2012, 02:04
Argument
Although custom prosthetic bone replacements produced through a new computer-aided design process will cost more than twice as much as ordinary replacements, custom replacements should still be cost-effective. Not only will surgery and recovery time be reduced, but custom replacements should last longer, thereby reducing the need for further hospital stays.

Question Stem
Which of the following must be studied in order to evaluate the argument presented above?
Evaluate Question - Which option validates or invalidates the conclusion above

Pre-thinking
Custom replacements may last more than twice the amount of time than ordinary replacements
Custom replacements may last less than twice the amount of time than ordinary replacements

Answer Choices
A. The amount of time a patient spends in surgery versus the amount of time spent recovering from surgery
INCORRECT ANSWER - Comparing the time spent in surgery and time spent recovering is not going to help us evaluate this argument

B. The amount by which the cost of producing custom replacements has declined with the introduction of the new technique for producing them
INCORRECT ANSWER - We are not told how much will the cost decrease?

C. The degree to which the use of custom replacements is likely to reduce the need for repeat surgery when compared with the use of ordinary replacements
CORRECT ANSWER - If the custom replacements last longer then they will definitely be cost effective. So this helps us know if these replacements are cost effective

D. The degree to which custom replacements produced with the new technique are more carefully manufactured than are ordinary replacements
INCORRECT ANSWER - carefully manufactured is not important. The quality of the product is not in question here

E. The amount by which custom replacements produced with the new technique will drop in cost as the production procedures become standardized and applicable on a larger scale
INCORRECT ANSWER - Future reduction in the cost is not relevant.
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Re: prosthetic bone [#permalink] New post 15 Oct 2014, 02:06
Where is it written in the given information that multiple surgeries are needed? How can we predict the same?
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Re: prosthetic bone   [#permalink] 15 Oct 2014, 02:06
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