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.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
Related questions
Question
Q1
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.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON