- Hello I Need Help With My Business Stats Homework 1 (78.64 KiB) Viewed 42 times
Hello I need help with my business stats homework
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Hello I need help with my business stats homework
Hello I need help with my business stats homework
HW 7 CLT: Problem 3 (1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 558.8 and standard deviation o = 28.6. (a) What is the probability that a single student randomly chosen from all those taking the test scores 562 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 30 students? The mean of the sampling distribution for a is: The standard deviation of the sampling distribution for a is: (c) What z-score corresponds to the mean score of 562? ANSWER: (d) What is the probability that the mean score of these students is 562 or higher? ANSWER:
HW 7 CLT: Problem 3 (1 point) The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 558.8 and standard deviation o = 28.6. (a) What is the probability that a single student randomly chosen from all those taking the test scores 562 or higher? ANSWER: For parts (b) through (d), consider a simple random sample (SRS) of 30 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 30 students? The mean of the sampling distribution for a is: The standard deviation of the sampling distribution for a is: (c) What z-score corresponds to the mean score of 562? ANSWER: (d) What is the probability that the mean score of these students is 562 or higher? ANSWER:
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