5. Students who enroll in a certain memory course are given a pre-test before the course begins. At the completion of the course, 6 students are randomly selected and given a post-test. Their scores are listed below: Student 1 2 3 4 5 6 Before 93 86 72 54 92 65 After 98 92 80 62 91 75 (a) Construct a 95% confidence interval for the mean difference in the test scores. (b) Based on the confidence interval in (a), can we conclude that there is significant improve- ment in memory for the students who enroll in the memory course? Why?
5. Students who enroll in a certain memory course are given a pre-test before the course begins. At the completion of the course, 6 students are randomly selected and given a post-test. Their scores are listed below: Student 1 2 3 4 5 6 Before 93 86 72 54 92 65 After 98 92 80 62 91 75 (a) Construct a 95% confidence interval for the mean difference in the test scores. (b) Based on the confidence interval in (a), can we conclude that there is significant improve- ment in memory for the students who enroll in the memory course? Why?
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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