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1. 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 1 2 3 4 Pre-test score 22 18 20 20 25 Post-test score 35 18 18 41 35 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.

1. 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 1 2 3 4 Pre-test score 22 18 20 20 25 Post-test score 35 18 18 41 35 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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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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: 1. Student 1 2 3 4. Pre-test score 22 18 20 20 25 Post-test score 35 18 18 41 35 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: 1. Student 1 2 3 4. Pre-test score 22 18 20 20 25 Post-test score 35 18 18 41 35 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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