A college professor randomly selects 25 freshmen to study the mathematical background of the incoming freshman class. The average SAT score of these 25 students is 565 and the standard deviation is estimated to be 40. Using this information, can this professor fully believe that the average test score of all incoming students is larger than 550 at a 5% level of significance?

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A: xbar = 48 mu = 32 s = 6 n =20

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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Q: A professor believes that, for the introductory art history classes at his university, the mean test…

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A: