Question: 1) You wish to determine if teaching statistics with definitional formula changes students' conceptual understanding of psychological statistics. We know the average performance on a

1) You wish to determine if teaching statistics with definitional formula changes students' conceptual understanding of psychological statistics. We know the average performance on a national statistics exam ( = 65). Thus, a sample of students (n = 8) were taught statistics with only definitional formula. After the class ended, all 8 students took a national statistics exam. There scores are listed below:

68, 69, 92, 77, 71, 99, 82, 74

Therefore, the research hypothesis is that teaching with definitional formula changes students' conceptual understanding of psychological statistics

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