Question: A collage professor selects 25 freshmen to study mathematical background. The SAT average score of these 25 students is 565and standard deviation is estimated to

A collage professor selects 25 freshmen to study mathematical background. The SAT average score of these 25 students is 565and standard deviation is estimated to be 40. Using this information can the professor reject the null hypothesis that the average scores 550 or less? Use a 5% level of significance.

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