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Nationwide, nearly two percent of all business school graduates will eventually be convicted of violations of the Securities and Exchange Act. Over the last five years, fully eight percent of all employees with MBAs at Schicksal, Barnham & Lampert, a top brokerage firm have been convicted of such violations. This dubious distinction clearly indicates that employees with MBAs at Schicksal, Barnham & Lampert are four times as corrupt as employees with MBAs at other brokerage firms.
Which one of the following statements, if true, most weakens the argument above?
A) The Securities and Exchange Commission is far more likely to investigate brokerage firms than other businesses.
B) Most of the employees of Schicksal, Barnham & Lampert are scrupulously honest and would not intentionally act in such a way as to violate a regulation such as the Securities and Exchange Act.
C) A greater number of the Schicksal, Barnham & Lampert employees with MBAs investigated for possible violations of the Securities and Exchange Act were cleared of all wrong-doing than were their counterparts at other brokerage firms.
D) The level of corruption of individuals on a staff is not directly related to the proportion of these individuals who have been convicted of corrupt behavior.
E) Schicksal, Barnham & Lampert regularly hires from the top eight percent of all business school graduates, who must have competed vigorously to have enjoyed such success.
Imo D
This is a great question about population.
The argument gives us some statistics regarding the folks with MBA working with brokerage firms to be corrupt.
Mow we have to weaken the question we have to somehow show that the conclusion is not sound and it may not necessarily follow form the premises given in the argument.
Folks who were implicated for the violations of the Securities and Exchange Act may be corrupt but it may not be that folks who work at the mentioned brokerage firms are corrupt. So we can not generalize.
We have to look for the option that gives us some reason that shows that conclusion does not follow the premises.
Only D does that.
Please read this excellent blog by Mike from
Magoosh on this very topic.
https://magoosh.com/gmat/2013/gmat-crit ... pulations/ I have a doubt the argument forecasts that " Nationwide, nearly two percent of all business school graduates will eventually be convicted of violations of the Securities and Exchange Act". Sp how we can segment the staff working in a firm with the business school graduates, the staff may include other persons as well, which is not in scope. How can we generalize to the whole working group that may may mot include the B school grads.
And, from this line "employees with MBAs at Schicksal, Barnham & Lampert are four times as corrupt as employees with MBAs at other brokerage firms.." i can assume that most of the employees have to be b graduates else the argument falls apart. To weaken the conclusion i need a point which either states that sample collected is too short or a new info.