It is currently 21 Oct 2017, 23:41

### 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
Manager
Joined: 11 Nov 2004
Posts: 69

Kudos [?]: 1 [0], given: 0

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

### Show Tags

06 Dec 2004, 20:00
00:00

Difficulty:

(N/A)

Question Stats:

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

### HideShow timer Statistics

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.

Kudos [?]: 1 [0], given: 0

Director
Joined: 25 Jan 2004
Posts: 721

Kudos [?]: 31 [0], given: 0

Location: Milwaukee

### Show Tags

06 Dec 2004, 20:32
A it is

Here the Author states "about 10 percent of actual donors will still supply NANB-contaminated blood" based on the assumption that donors carrying NANB-contaminated blood won't be tested for any other conditions that might disqualify from donating blood
_________________

Praveen

Kudos [?]: 31 [0], given: 0

Director
Joined: 16 Jun 2004
Posts: 891

Kudos [?]: 65 [0], given: 0

### Show Tags

06 Dec 2004, 20:36
I will go with A on this one. The donors who carry NANB and are missed out is because, they haven't shown any symptoms that was prompting for any screening. So, it is assumed that not every donor is specifically checked for NANB hepatitis.

Kudos [?]: 65 [0], given: 0

Manager
Joined: 11 Nov 2004
Posts: 69

Kudos [?]: 1 [0], given: 0

### Show Tags

06 Dec 2004, 20:53
thank you guys!

OA is A.

Kudos [?]: 1 [0], given: 0

Intern
Joined: 26 Nov 2004
Posts: 47

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

### Show Tags

06 Dec 2004, 20:54
I will go with E.
Conclusion: There will be 10% people donating blood that is contanimated.
Assumtion: They will stay the same number(10%) when compared to other people.

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

06 Dec 2004, 20:54
Display posts from previous: Sort by