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16. A private school promoted itself by advertising that its graduates had an average SAT verbal score of 55!] (with a standard deviation of 10G).

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16. A private school promoted itself by advertising that its graduates had an average SAT verbal score of 55!] (with a standard deviation of 10G). At the end of the school year the ParentTeacher Association (PTA) decided to test this contention and obtained the SAT verbal scores for Si] graduating seniors. Their average score was 532. What should the PTA conclude in regard to the school's claim it a .(15 level of signicance is used? (a) Clearly state null and research hypotheses. (b) What is the comparison distribution

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