Blood banks will shortly start to screen all donors for NANB : GMAT Critical Reasoning (CR)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 21 Jan 2017, 13:59

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Blood banks will shortly start to screen all donors for NANB

Author Message
TAGS:

### Hide Tags

SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 327 [0], given: 0

Blood banks will shortly start to screen all donors for NANB [#permalink]

### Show Tags

01 Nov 2005, 03:42
00:00

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions

### HideShow timer Statistics

19. Blood banks will shortly start to screen all donors for NANB hepatitis. Although the new screening tests are estimated to disqualify up to 5 percent of all prospective blood donors, they will still miss two-thirds of donors carrying NANB hepatitis. Therefore, about 10 percent of actual donors will still supply NANB-contaminated blood.
The argument above depends on which of the following assumptions?
(A) Donors carrying NANB hepatitis do not, in a large percentage of cases, carry other infections for which reliable screening tests are routinely performed.
(B) Donors carrying NANB hepatitis do not, in a large percentage of cases, develop the disease themselves at any point.
(C) The estimate of the number of donors who would be disqualified by tests for NANB hepatitis is an underestimate.
(D) The incidence of NANB hepatitis is lower among the potential blood donors than it is in the population at large.
(E) The donors who will still supply NANB-contaminated blood will donate blood at the average frequency for all donors.
_________________

hey ya......

If you have any questions
New!
Director
Joined: 29 Aug 2005
Posts: 503
Followers: 2

Kudos [?]: 12 [0], given: 0

### Show Tags

02 Nov 2005, 08:47
Tough call between A and E.

A - Correct - This is an assumption.
B - Incorrect - develop the disease themselves
C - Incorrect - Argument is not under/over estimating
D - Incorrect - We are not talking of the incidence of the incidence of NANB hepatitis
E - Incorrect - If the frequency changes the percentages would be maintained as per the argument.

What is the OA/OE?
SVP
Joined: 16 Oct 2003
Posts: 1810
Followers: 4

Kudos [?]: 136 [0], given: 0

### Show Tags

02 Nov 2005, 10:16
A.

If people carrying hep N are infected with something else then they will be disqualified if that infection gets detected.
SVP
Joined: 28 May 2005
Posts: 1723
Location: Dhaka
Followers: 7

Kudos [?]: 327 [0], given: 0

### Show Tags

07 Nov 2005, 06:39
OA is A.
good job.
_________________

hey ya......

07 Nov 2005, 06:39
Similar topics Replies Last post
Similar
Topics:
3 Blood banks will shortly start to screen all donors for NANB 5 09 Mar 2011, 19:18
80 Blood banks will shortly start to screen all donors for NANB 21 14 Aug 2009, 12:18
Blood banks will shortly start to screen all donors for NANB 13 06 May 2008, 06:10
Blood banks will shortly start to screen all donors for NANB 13 04 Apr 2008, 11:36
Blood banks will shortly start to screen all donors for NANB 10 08 Jun 2007, 21:53
Display posts from previous: Sort by