A psychologist tested the effect of a science fiction movie on people's belief in the supernatural. Seven people completed a measure of belief in the supernatural (high scores indicate high levels of belief) before and after watching a popular science fiction movie. Participants' scores are listed below. Belief-in-Supernatural Scores. Before and After Watching a Science Fiction Movie Before- 3, 5, 9, 6, 7, 5, 4 After- 3, 3, 6, 8, 8, 2, 1 i. With regard to the hypotheses in this study, what decisions should the psychologist make? j. What is the effect size in this study? By conventional standards, how big is the effect? k. Write up the results of this study. I. What is the approximate power of this study?