Mathematics, 19.04.2021 21:30, Jasten

The scores of individual students on the American College Testing (ACT) composite college entrance examination have a normal distribution with mean 18.6 and standard deviation 5.9. What is the probability that the mean score of an SRS of 40 students chosen from all those taking the test is 21 or higher? Round your percentage to 2 decimals.

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The scores of individual students on the American College Testing (ACT) composite college entrance e...