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Need explanations of the questions, I stopped half way and had trouble. 7. It has been claimed that at a college at least 50% of

Need explanations of the questions, I stopped half way and had trouble.

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7. It has been claimed that at a college at least 50% of the students live on campus. In a random sample of 300 students, 140 were found to live on campus. Does the evidence support the claim at a = .05? A) No, because the test value -2.58 l.65. C) No, because the test value 2.58 > 1.65. D) Yes, because the test value -1.04

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