A lecturer wants to see if a PowerPoint presentation will change students' understanding of a certainconcept in Statistics. Five students were randomly selected for the study and were given a pre-teston their understanding of the statistical concept. Then, the students viewed the PowerPointpresentation and afterwards were given a post-test on their understanding of the statistical concept.The data are shown in the table below:Student3201842018182535Pre-test score22Post-test score3541Test at a 5% level of significance whether the PowerPoint presentation makes a difference in theaverage understanding of the statistical concept. Assume that samples are drawn from a normalpopulation.

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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.

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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 13PT

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Question

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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