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Problem 5. (1 point) The scores of students on the SAT college entrance examinations at a certain high school had a norm
Posted: Wed May 04, 2022 12:10 pm
by answerhappygod
- Problem 5 1 Point The Scores Of Students On The Sat College Entrance Examinations At A Certain High School Had A Norm 1 (29.24 KiB) Viewed 37 times
Problem 5. (1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean - 554 and standard deviation 26.7. (a) What is the probability that a single student randomly chosen from all those taking the test scores 561 or higher? ANSWER 0.39743 For parts (b) through (d), consider a simple random sample (SRS) of 25 students who took the test (b) What are the mean and standard deviation of the sample mean score 2 of 25 students? The mean of the sampling distribution for at is 554 The standard deviation of the sampling distribution for 2 is: 5.3-4 (c) What z-score corresponds to the mean score of 5617 ANSWER 1.31086 (d) What is the probability that the mean score of these students is 561 or higher? ANSWER 0.9032 Note: You can earn partial credit on this problem. preview answers Entered Answer Preview Result