SOLUTION: The Middletown Police department gives a standardized test to potential captains. The mean score is 170 with a standard deviation of 20 points. A score of 200 points is required to
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Question 525310: The Middletown Police department gives a standardized test to potential captains. The mean score is 170 with a standard deviation of 20 points. A score of 200 points is required to pass. Approximately what percentage of those who take the test will pass? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The Middletown Police department gives a standardized test to potential captains. The mean score is 170 with a standard deviation of 20 points. A score of 200 points is required to pass. Approximately what percentage of those who take the test will pass?
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z(200) = (200-170)/20 = 3/2
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P(x >= 200) = P(z >= 3/2) = 0.0668
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Cheers,
Stan H.
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