GMATGuruNY wrote:
In a sampling CR, information about A SAMPLE is used to draw a conclusion about A WHOLE GROUP.
To weaken the conclusion, the correct answer will typically indicate WHY the sample might not accurately reflect the whole group.
Case 1:https://gmatclub.com/forum/guidebook-writer-i-have-visited-hotels-throughout-the-country-and-hav-80358.html
Here, the OA suggests that poorly constructed hotels have likely been torn down.
Implication:
The visited hotels in the passage do not accurately reflect ALL hotels built before 1930.
Case 2: https://gmatclub.com/forum/people-who-h ... 23222.html
Here, the OA suggests that zoo employees with allergy issues are likely to switch to another occupation.
Implication:
The zoo employees in the survey do not accurately reflect ALL zoo employees with allergyissues.
To weaken the conclusion, the correct answer will typically indicate WHY the sample might not accurately reflect the whole group.
Case 1:https://gmatclub.com/forum/guidebook-writer-i-have-visited-hotels-throughout-the-country-and-hav-80358.html
Here, the OA suggests that poorly constructed hotels have likely been torn down.
Implication:
The visited hotels in the passage do not accurately reflect ALL hotels built before 1930.
Case 2: https://gmatclub.com/forum/people-who-h ... 23222.html
Here, the OA suggests that zoo employees with allergy issues are likely to switch to another occupation.
Implication:
The zoo employees in the survey do not accurately reflect ALL zoo employees with allergyissues.
Quote:
Recent observations
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Statistics : Posted by Contropositive • on 22 Sep 2019, 10:54 • Replies 25 • Views 31615
