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NischalP
Joined: 26 Nov 2019
Last visit: 20 Dec 2022
Posts: 61
Own Kudos:
Given Kudos: 76
Concentration: Technology, Strategy
Schools: Schulich(Jan) '22 (A) BITSoM '23 (A)
GMAT 1: 650 Q49 V31
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17 Dec 2019, 06:04
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Karishma,
I do not completely agree with you on option C
( In the argument it is already stated that large cue of companies have been taken to compare their average ages)
So in this case why can't majority of the opinion apply as a generalisation.
I go with option A.
I do not completely agree with you on option C
( In the argument it is already stated that large cue of companies have been taken to compare their average ages)
So in this case why can't majority of the opinion apply as a generalisation.
I go with option A.
17 Sep 2020, 23:04
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spriya
Like others questions on GMAT, language and logic are important to understand in this one too.
Based on the sample of companies from 20 years ago, a conclusion is drawn in "General" for all CEOs. The argument takes a leap here and C correctly points to the gaping hole in the argument, rest are just distractions.
Straight C
10 Feb 2021, 23:32
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The average age of chief executive officers (CEO’s) in a large sample of companies is 57. The average age of CEO’s in those same companies 20 years ago was approximately eight years younger. On the basis of those data, it can be concluded that CEO’s in general tend to be older now.
Which of the following casts the most doubt on the conclusion drawn above?
(A) The dates when the CEO’s assumed their current positions have not been specified. X
Irrelevant. Suppoes we did know when the CEO started their positions – would the average age change? No. There’s no relationship between the two pieces of data.
(B) No information is given concerning the average number of years that CEO’s remain in office. X
Again, not relevant. Be careful not to spin this and say …”well perhaps the premises aren’t accurate b/c it fails to account for all of the CEOs” or something to that effect.
(C) The information is based only on companies that have been operating for at least 20 years.
Correct. A conclusion is made that CEOs IN GENERAL tend to be older so if it it’s true that the sample is restricted to companies > 20, then our ability to generalize disappears.
(D) Only approximate information is given concerning the average age of the CEO’s 20 years ago. X
Cannot attack the truth of the premise …that’s what this choice tries to do. Still, even if it were approximate – does that necessarily mean completely inaccurate? No.
(E) Information concerning the exact number of companies in the sample has not been given. X
Irrelevant.
Which of the following casts the most doubt on the conclusion drawn above?
(A) The dates when the CEO’s assumed their current positions have not been specified. X
Irrelevant. Suppoes we did know when the CEO started their positions – would the average age change? No. There’s no relationship between the two pieces of data.
(B) No information is given concerning the average number of years that CEO’s remain in office. X
Again, not relevant. Be careful not to spin this and say …”well perhaps the premises aren’t accurate b/c it fails to account for all of the CEOs” or something to that effect.
(C) The information is based only on companies that have been operating for at least 20 years.
Correct. A conclusion is made that CEOs IN GENERAL tend to be older so if it it’s true that the sample is restricted to companies > 20, then our ability to generalize disappears.
(D) Only approximate information is given concerning the average age of the CEO’s 20 years ago. X
Cannot attack the truth of the premise …that’s what this choice tries to do. Still, even if it were approximate – does that necessarily mean completely inaccurate? No.
(E) Information concerning the exact number of companies in the sample has not been given. X
Irrelevant.
