Solved: Scores on the SAT college entrance test in a recent year were roughly Normalwith

Chapter 0, Problem 11.21

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Scores on the SAT college entrance test in a recent year were roughly Normalwith mean 1026 and standard deviation 209. You choose an SRS of 100 studentsand average their SAT scores. If you do this many times, the standard deviation ofthe average scores you get will be close to(a) 209. (b) 100/209 = 6.92. (c) 209/100 = 20.9.

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