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{"ops":[{"insert":"The Graduate Record Exam (GRE) is a standardized test required to be admitted to many\ngraduate schools. A high score in the GRE makes admission more likely. According to the\nEducational Testing Service, the mean score for takers of GRE who do not have training\ncourses is 555 with a standard deviation of 139. Brainpower Philippines (BP) offers expensive\nGRE training courses, claiming their graduates score better than those who have not taken any\ntraining courses. To test the company\u2019s claim, you as a statistician randomly selected 30\ngraduates of BP and asked their GRE scores. The random sample of 30 graduates he obtains\nrecorded a mean score of 560 in GRE. (Level of Significance \u03b1 = 0.05)\nIdentify the test statistic to be used and the following;\n1. x\u0305= ___\n2. s or \u03c3 = ___\n3. H0: ___\n4. H1: ___\n5. \u03bc = ___\n6. \u03b1 = ___\n7. ZC or tC = ___\n8. Z\u03b1 or t\u03b1 = ___\n9. Decision rule: ___\n10. Draw the rejection region: ____\n11. Decision: ___\n12. Conclusion:\n"}]}

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