NEW HERE? LEARN MORE
closeclose
Last visit was: 29 Apr 2024, 01:22 It is currently 29 Apr 2024, 01:22
Decision Tracker
My Rewards
New posts
New comers' posts

Close
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
Your Progress

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
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

In order to improve the performance of students taking her course, the

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 92982
Own Kudos [?]: 619796 [0]
Given Kudos: 81626
Send PM
CAT Tests Forum Quiz Mode
In order to improve the performance of students taking her course, the [#permalink] New post   21 Mar 2023, 05:45
Expert Reply
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

84% (01:20) correct 16% (01:03) wrong based on 64 sessions
Hide Show timer Statistics
In order to improve the performance of students taking her course, the Statistics professor has introduced a weekly quiz for the new batch that started school this year. So far, she has found that the students’ performance has improved by 5% as compared to the performance of the senior batches in their first year. This improvement is certainly a direct result of her weekly quizzes.

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

A. Many students who would not have allotted much time to study Statistics are now spending extra time on the subject because of the weekly quizzes.

B. Some of the students in the new batch perform better in Statistics than they do in other subjects.

C. The Statistics textbook prescribed for the introductory course this year is considerably easier to understand than the textbook used previously.

D. In a recent evaluation by the school board, the Statistics professor was ranked the best professor in the school.

E. Most students feel that the weekly quizzes are making it difficult for them to concentrate on other subjects.
ShowHide Answer
Official Answer
C
User avatar
B
abhinavchitre13
Intern
Intern
Joined: 22 May 2022
Posts: 31
Own Kudos [?]: 17 [0]
Given Kudos: 62
Location: India
GPA: 2.3
Send PM
In order to improve the performance of students taking her course, the [#permalink] New post   21 Mar 2023, 23:55
A. Many students who would not have allotted much time to study Statistics are now spending extra time on the subject because of the weekly quizzes.

this will strengthen the conclusion.


B. Some of the students in the new batch perform better in Statistics than they do in other subjects.
This still doesnt answer why their performance was better than previous batches.

C. The Statistics textbook prescribed for the introductory course this year is considerably easier to understand than the textbook used previously.
Yes this seems like a valid reason. Correct Answer

D. In a recent evaluation by the school board, the Statistics professor was ranked the best professor in the school.
This doesnt add any value to the question at hand.

E. Most students feel that the weekly quizzes are making it difficult for them to concentrate on other subjects.
We are concerned about performance in statistics.
User avatar
B
Sejal2017
Intern
Intern
Joined: 20 Mar 2023
Posts: 11
Own Kudos [?]: 4 [0]
Given Kudos: 6
Send PM
Re: In order to improve the performance of students taking her course, the [#permalink] New post   22 Mar 2023, 00:13
C. The book became more comprehensible.

Posted from my mobile device
User avatar
D
bv8562
Senior Manager
Senior Manager
Joined: 01 Dec 2020
Posts: 480
Own Kudos [?]: 373 [0]
Given Kudos: 359
GMAT 1: 680 Q48 V35
In order to improve the performance of students taking her course, the [#permalink] New post   22 Mar 2023, 04:52
In order to improve the performance of students taking her course, the Statistics professor has introduced a weekly quiz for the new batch that started school this year. So far, she has found that the students’ performance has improved by 5% as compared to the performance of the senior batches in their first year. This improvement is certainly a direct result of her weekly quizzes.

Which of the following, if true, casts the most serious doubt on the conclusion drawn above?

A. Many students who would not have allotted much time to study Statistics are now spending extra time on the subject because of the weekly quizzes. - This option gives us more reason to believe that the weekly quizzes are responsible for the 5% improvement in student's performance.

B. Some of the students in the new batch perform better in Statistics than they do in other subjects. - This means that SOME students were good in statistics even before the professor introduced the weekly quiz. But the argument talks about 5% improvement in all of the student's performance, therefore, it does not weaken the conclusion.

C. The Statistics textbook prescribed for the introductory course this year is considerably easier to understand than the textbook used previously. - Yes, this weakens the conclusion because it gives us another reason for the improved performance of the students.

D. In a recent evaluation by the school board, the Statistics professor was ranked the best professor in the school. - This does not affect the conclusion in anyway.

E. Most students feel that the weekly quizzes are making it difficult for them to concentrate on other subjects. - This could strengthen the conclusion because if what this choice says is true then it suggests that because of the weekly quizzes students are concentrating more on statistics and that might, in turn, be responsible for the improved performance of the students.
GMAT Club Bot
gmatclubot
In order to improve the performance of students taking her course, the [#permalink]
22 Mar 2023, 04:52
Moderators:
GMATNinja
GMAT Club Verbal Expert
6923 posts
GMATNinjaTwo
GMAT Club Verbal Expert
238 posts
mysterymanrog
CR Forum Moderator
832 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions