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Updated on: 19 Apr 2021, 07:42
Originally posted by Sajjad1994 on 26 Feb 2017, 08:27.
Last edited by Sajjad1994 on 19 Apr 2021, 07:42, edited 3 times in total.
Last edited by Sajjad1994 on 19 Apr 2021, 07:42, edited 3 times in total.
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
63% (01:33) correct
37%
(01:44)
wrong
based on 499
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Not Attempted Yet
A pharmaceutical company tested a new painkiller on 1,000 lab rats that were fed large doses of the painkiller for a two-month period. By the end of the experiment, 39 of the rats had died. The company concluded that the painkiller was sufficiently safe to test on humans.
Which of the following, if true, provides the most support for the pharmaceutical company’s conclusion?
A. The amount of painkiller fed to the rats was substantially greater, in relation to body mass, than the dosage any human would take under normal circumstances.
B. Because of the different body chemistry of humans and rats, some compounds can be dangerous for rats but safe for humans, and vice versa.
C. Tests of this same painkiller on dogs showed that 3 out of 50 dogs developed lesions on their livers during the course of the experiment.
D. The researchers found that during the experiment, the rats showed a significantly lower sensitivity to pain than rats do under normal circumstances.
E. In an experiment of this length with this number of rats, it is not unusual for up to 50 rats to die during the experiment for reasons unrelated to the experiment itself.
Which of the following, if true, provides the most support for the pharmaceutical company’s conclusion?
A. The amount of painkiller fed to the rats was substantially greater, in relation to body mass, than the dosage any human would take under normal circumstances.
B. Because of the different body chemistry of humans and rats, some compounds can be dangerous for rats but safe for humans, and vice versa.
C. Tests of this same painkiller on dogs showed that 3 out of 50 dogs developed lesions on their livers during the course of the experiment.
D. The researchers found that during the experiment, the rats showed a significantly lower sensitivity to pain than rats do under normal circumstances.
E. In an experiment of this length with this number of rats, it is not unusual for up to 50 rats to die during the experiment for reasons unrelated to the experiment itself.
Source: McGraw-Hill's
27 Feb 2017, 12:53
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Must be E
Assume that it is an analogy type of argument, so our goal is to find any evidence or assumption that would point out on any other reason due to rats have died during the experiment.
Ans "A" is tempting however we don't know if rats were fed with lower dosages of painkiller the upshot would be different or not, believe that it's the main drawback of this option.
Assume that it is an analogy type of argument, so our goal is to find any evidence or assumption that would point out on any other reason due to rats have died during the experiment.
Ans "A" is tempting however we don't know if rats were fed with lower dosages of painkiller the upshot would be different or not, believe that it's the main drawback of this option.
07 Mar 2017, 09:36
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It is E.
Firstly, I have chosen A, but on the second try it is clearly E. "not unusual = usual"
Firstly, I have chosen A, but on the second try it is clearly E. "not unusual = usual"
