Question: A college professor randomly selects 25 freshmen to study the mathematical background of the incoming freshman class. The average Sat score of these students is

A college professor randomly selects 25 freshmen to study the mathematical background of the incoming freshman class. The average Sat score of these students is 565 and standard deviation is estimated to be 40. Using using this information can the professor reject the null hypothesis that the average test score is 550 or less. The use 5%level of significance

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