Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 and a standard deviation of 112. Note: Please round z-scores to 3 decimal places and give probabilities to at least 4 decimal places. (a) If 1 man is randomly selected, find the probability that his score is at least 579.5. (b) If 10 men are randomly selected, find the probability that their mean score is at least 579.5. 10 randomly selected men were given a review course before taking the SAT test. If their mean score is 579.5, is there a strong evidence to support the claim that the course is actually effective? (Enter YES or NO)
Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 and a standard deviation of 112. Note: Please round z-scores to 3 decimal places and give probabilities to at least 4 decimal places. (a) If 1 man is randomly selected, find the probability that his score is at least 579.5. (b) If 10 men are randomly selected, find the probability that their mean score is at least 579.5. 10 randomly selected men were given a review course before taking the SAT test. If their mean score is 579.5, is there a strong evidence to support the claim that the course is actually effective? (Enter YES or NO)
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Scores for men on the verbal portion of the SAT-I test are normally distributed with a mean of 509 and a standard deviation of 112. Note: Please
round z-scores to 3 decimal places and give probabilities to at least 4 decimal places.
(a) If 1 man is randomly selected, find the probability that his score is at least 579.5.
(b) If 10 men are randomly selected, find the probability that their mean score is at least 579.5.
10 randomly selected men were given a review course before taking the SAT test. If their mean score is 579.5, is there a strong evidence to support the
claim that the course is actually effective?
(Enter YES or NO)
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