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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Student 1 23 4 5 6 789 10 Before 93 86 72 54 92 65 80 81 62 73 After 98 92 80 62 9 78 89 78 71 80 Confidence Intervals Variable N Mean StDev SEMean 95% C.1. C3 10 6.10 4.79 1.52 (2.67, 9.53)