A group of 20 college students participated in a study to examine the effects of a new study technique on their exam performance. Each student's exam score before and after implementing the new study technique was recorded. The average difference between the exam scores before and after implementing the new study technique was found to be 7 points higher after the technique was applied. The variance of the differences for the entire sample was calculated to be 36. Is there a significant difference in the exam scores before and after implementing the technique? Use a two-tailed test at alpha.05.
A group of 20 college students participated in a study to examine the effects of a new study technique on their exam performance. Each student's exam score before and after implementing the new study technique was recorded. The average difference between the exam scores before and after implementing the new study technique was found to be 7 points higher after the technique was applied. The variance of the differences for the entire sample was calculated to be 36. Is there a significant difference in the exam scores before and after implementing the technique? Use a two-tailed test at alpha.05.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A group of 20 college students participated in a study to examine the effects of a new study technique on their exam performance. Each student's exam score before and after implementing the new study technique was recorded. The average difference between the exam scores before and after implementing the new study technique was found to be 7 points higher after the technique was applied. The variance of the differences for the entire sample was calculated to be 36. Is there a significant difference in the exam scores before and after implementing the technique? Use a two-tailed test at alpha.05.
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