All students who enroll in a certain memory course are given a pre-test before the course begins. At the completion of the course, 10 students are selected at random and given a post-test; their scores are listed here.
MINITAB was used to find the 95% confidence interval for the mean improvement in memory resulting from taking the memory course, as measured by the difference in test scores (d = after = before) Verify the results shown on the output by calculating the values yourself.Assume normality
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