Test at a 5% level of significance whether the PowerPoint presentation makes a difference in the average understanding of the statistical concept. Assume that samples are drawn from a normal population.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A lecturer wants to see if a PowerPoint presentation will change students' understanding of a certain
concept in Statistics. Five students were randomly selected for the study and were given a pre-test
on their understanding of the statistical concept. Then, the students viewed the PowerPoint
presentation and afterwards were given a post-test on their understanding of the statistical concept.
The data are shown in the table below:
Student
3
20
18
4
20
18
18
25
35
Pre-test score
22
Post-test score
35
41
Test at a 5% level of significance whether the PowerPoint presentation makes a difference in the
average understanding of the statistical concept. Assume that samples are drawn from a normal
population.
Transcribed Image Text:A lecturer wants to see if a PowerPoint presentation will change students' understanding of a certain concept in Statistics. Five students were randomly selected for the study and were given a pre-test on their understanding of the statistical concept. Then, the students viewed the PowerPoint presentation and afterwards were given a post-test on their understanding of the statistical concept. The data are shown in the table below: Student 3 20 18 4 20 18 18 25 35 Pre-test score 22 Post-test score 35 41 Test at a 5% level of significance whether the PowerPoint presentation makes a difference in the average understanding of the statistical concept. Assume that samples are drawn from a normal population.
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