(#4) All students who enroll in a certain memory course are given a pretest before the cour begins. At the completion of the course, 10 students were selected at random and give posttest. Their scores are listed in the accompanying table: Student 1 Pretest 93 Posttes 98 92 t 2 86 3 72 80 4 54 62 5 6 92 65 91 78 7 80 89 8 81 78 9 62 71 10 73 80 Is there statistical evidence that the course improves memory? Perform your test at the .05 level of significance and your confidence interval at 95%.

(#4) All students who enroll in a certain memory course are given a pretest before the cour begins. At the completion of the course, 10 students were selected at random and give posttest. Their scores are listed in the accompanying table: Student 1 Pretest 93 Posttes 98 92 t 2 86 3 72 80 4 54 62 5 6 92 65 91 78 7 80 89 8 81 78 9 62 71 10 73 80 Is there statistical evidence that the course improves memory? Perform your test at the .05 level of significance and your confidence interval at 95%.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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