Scores for a common standardized college aptitudê test are standard deviation of 97. Randomly selected men are given a Prepartion Course before taking this test. Assume, for sake of argument, that the Preparation Course has no effect on people's test scores. If 1 of the men is randomly selected, find the probability that his score is at least 534.6. P(X > 534.6) = Enter your answer as a number accurate to 4 decimal places. %3D If 11 of the men are randomly selected, find the probability that their mean score is at least 534.6. P(z > 534.6) = Enter your answer as a number accurate to 4 decimal places. If the random sample of 11 men does result in a mean score of 534.6, is there strong evidence to support a claim that the Preapartion Course is actually effective? (Use the criteria that "unusual" events have a probability of less than 5%.) ONo. The probability indicates that is possible by chance alone to randomly select a group of students with a mean as high as 534.6 if the Preparation Course has no effect. O Yes. The probability indicates that is highly unlikely that by chance, a randomly selected group of students would get a mean as high as 534.6 if the Preparation Course has no offort

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O Question 26
Scores for a common standardized college aptitude test are normally distributed with a mean of 482 and a
standard deviation of 97. Randomly selected men are given a Prepartion Course before taking this test.
Assume, for sake of argument, that the Preparation Course has no effect on people's test scores.
If 1 of the men is randomly selected, find the probability that his score is at least 534.6.
P(X > 534.6) =
Enter your answer as a number accurate to 4 decimal places.
If 11 of the men are randomly selected, find the probability that their mean score is at least 534.6.
P(E > 534.6) =
Enter your answer as a number accurate to 4 decimal places.
If the random sample of 11 men does result in a mean score of 534.6, is there strong evidence to support a
claim that the Preapartion Course is actually effective? (Use the criteria that "unusual" events have a
probability of less than 5%.)
ONo. The probability indicates that is possible by chance alone to randomly select a group of students
with a mean as high as 534.6 if the Preparation Course has no effect.
O Yes. The probability indicates that is highly unlikely that by chance, a randomly selected group of
students would get a mean as high as 534.6 if the Preparation Course has no effect.
Check Answer
Transcribed Image Text:O Question 26 Scores for a common standardized college aptitude test are normally distributed with a mean of 482 and a standard deviation of 97. Randomly selected men are given a Prepartion Course before taking this test. Assume, for sake of argument, that the Preparation Course has no effect on people's test scores. If 1 of the men is randomly selected, find the probability that his score is at least 534.6. P(X > 534.6) = Enter your answer as a number accurate to 4 decimal places. If 11 of the men are randomly selected, find the probability that their mean score is at least 534.6. P(E > 534.6) = Enter your answer as a number accurate to 4 decimal places. If the random sample of 11 men does result in a mean score of 534.6, is there strong evidence to support a claim that the Preapartion Course is actually effective? (Use the criteria that "unusual" events have a probability of less than 5%.) ONo. The probability indicates that is possible by chance alone to randomly select a group of students with a mean as high as 534.6 if the Preparation Course has no effect. O Yes. The probability indicates that is highly unlikely that by chance, a randomly selected group of students would get a mean as high as 534.6 if the Preparation Course has no effect. Check Answer
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