Scores for a common standardized college aptitude test a normally distributed with a mean of 509 and a standard deviation of 104. Randomly selected men are given a Tes Preparation Course before taking this test. Assume, for sa of argument, that the test has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 571.4.

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Scores for a common standardized college aptitude test are
normally distributed with a mean of 509 and a standard
deviation of 104. Randomly selected men are given a Test
Preparation Course before taking this test. Assume, for sake
of argument, that the test has no effect.
If 1 of the men is randomly selected, find the probability
that his score is at least 571.4.
P(X > 571.4) =
your answer as a number accurate to 4 decimal places.
NOTE: Answers obtained using exact z-scores or z-scores
rounded to 3 decimal places are accepted.
Enter
If 16 of the men are randomly selected, find the probability
that their mean score is at least 571.4.
P(M > 571.4) =
%3D
Enter your answer as a number accurate to 4 decimal places.
NOTE: Answers obtained using exact z-scores or z-scores
rounded to 3 decimal places are accepted.
Transcribed Image Text:Scores for a common standardized college aptitude test are normally distributed with a mean of 509 and a standard deviation of 104. Randomly selected men are given a Test Preparation Course before taking this test. Assume, for sake of argument, that the test has no effect. If 1 of the men is randomly selected, find the probability that his score is at least 571.4. P(X > 571.4) = your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. Enter If 16 of the men are randomly selected, find the probability that their mean score is at least 571.4. P(M > 571.4) = %3D Enter your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.
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