A study involving 20 college students aimed to investigate the impact of a novel study technique on their exam performance. The researchers recorded the exam scores of each student both before and after the implementation of the new study technique. On average, there was an observed increase of 7 points in exam scores after the new technique was utilized. The variance of the score differences across the entire sample was determined to be 36. To assess whether there is a statistically significant difference in exam scores before and after implementing the technique, a two-tailed test with a significance level of 0.05 (alpha = 0.05) was employed. Is there a significant difference?
A study involving 20 college students aimed to investigate the impact of a novel study technique on their exam performance. The researchers recorded the exam scores of each student both before and after the implementation of the new study technique. On average, there was an observed increase of 7 points in exam scores after the new technique was utilized. The variance of the score differences across the entire sample was determined to be 36. To assess whether there is a statistically significant difference in exam scores before and after implementing the technique, a two-tailed test with a significance level of 0.05 (alpha = 0.05) was employed. Is there a significant difference?
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 14CR
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A study involving 20 college students aimed to investigate the impact of a novel study technique on their exam performance. The researchers recorded the exam scores of each student both before and after the implementation of the new study technique. On average, there was an observed increase of 7 points in exam scores after the new technique was utilized. The variance of the score differences across the entire sample was determined to be 36. To assess whether there is a statistically significant difference in exam scores before and after implementing the technique, a two-tailed test with a significance level of 0.05 (alpha = 0.05) was employed.
Is there a significant difference?
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