(Solved): need help asap (2 points) The scores of students on the SAT college entrance examinations at a certa ...
need help asap
(2 points) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean u = 533.9 and standard deviation = 28 (a) What is the probability that a single student randomly chosen from all those taking the test scores 539 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test. (0) What are the mean and standard deviation of the sample mean score X, of 30 students? The mean of the sampling distribution for The standard deviation of the sampling dintribution for is: 1) What 2-core coresponds to the mean score of 5307 ANSWER: d) What the probability that the mean score of these students in 530 or higher? ANSWER
Solution: (a) Let the random variable X be the scores of students on the SAT college entrance examinations at a certain high school with mean of the scores was, ? = 533.9 and standard deviation of the scores was, ? = 28.