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Bookmarks Profiles Tab Window Help Exam Final Practice with Soluti X Assignment 10 Solutions x Assignment 11 Solutions x Assignment 837/quizzes/secured#lockdown A company psychologist administers a set of tests to each of ten supervisors before and after a management training program. The tests are designed to measure supervisory skills, with higher scores indicating increased skill. The results of the tests are shown below Score Score Score Supervisor Pre-training Post-training Difference 63 78 15 93 92 -1 Mean of the sample of Scores Differences: 6.90 84 91 7 Standard Deviation of the sample of Scores Differences: 5.42 DUI AWN 72 80 8 65 69 4 72 85 13 91 99 8 84 82 -2 71 81 10 10 80 87 7 Which of the following statements is NOT correct with respect to justifying why the paired difference experiment is better way to analyze this problem then the independent sampling approach? By blocking the variation due to different supervisors, we are able to focus on the difference in the pre- training and the post-training scores Since the degrees of freedom is significantly higher for the paired difference experiment, we are able to use smaller t values for our computations The two independent samples based approach would not be appropriate, since the two samples are not independent O In general, the paired difference experiment enables us to detect the between sample variation by blocking out some of the within sample variation II P 10 DEC 16 tv