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Mathematics, 06.05.2021 19:40 cw112400

The average height of males in the freshman class of a certain college has been 174.5 centimeters, with a standard deviation of 6.9 centimeters. Is there reason to believe that there has been a change in the average height if a random sample of 49 males in the present freshman class has an average height of 177.2 centimeters? Use a 0.02 level of significance.

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