Question

2. Many high schools have education programs that encourage teachers to embrace racial tolerance, recognize ethnic diversity, and overcome racial stereotypes. To gauge the effectiveness of one such program that utilizes two videos of teachers engaging in racial stereotypes of their students, researchers from New York University and City University of New York recruited 238 high school professionals (including teachers and counselors) to participate in a study (Journal of Moral Education, March 2010). Teachers watched the first video, then were given a pretest - the Quick-REST Survey-designed to measure ethical sensitivity towards racial intolerance. The teachers next participated in an all-day workshop on cultural competence. At the end of the workshop the teachers watched the second video and again were given the Quick-REST Survey (the posttest). A sample of ten is given, with each teachers' pre- and post-test scores paired. The researchers conduct hypothesis test to gauge the effectiveness of the program. Assume the differences are normally distributed. Use a significance level of 0.05. Teacher Pretest Posttest 74 80 94 78 78 84 71 73 70 72 81 73 87 61 76 63 Note: The higher the score on the Quick-REST Survey, the greater the level of racial tolerance. 83 10

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