Answer in full

Section 6.3: Problem 5 Previous Problem Problem List Next Problem (1 point) 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. (a) If 1 man is randomly selected, find the probability that his score is at least 578.5. (b) If 17 men are randomly selected, find the probability that their mean score is at least 578.5. 17 randomly selected men were given a review course before taking the SAT test. If their mean score is 578.5, is there a strong evidence to support the claim that the course is actually effective? (Enter YES or NO) YES Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 33%. You have unlimited attempts remaining