Homework Help is Here – Start Your Trial Now!
Math
Statistics
The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 542.9 and standard deviation o - 28.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 547 or higher? ANSWER: 0.4426 For parts (b) through (d), consider a simple random sample (SRS) of 35 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 35 students? The mean of the sampling distribution for is: 542.9 The standard deviation of the sampling distribution for is: 4.8005 (c) What z-score corresponds to the mean score of 547? ANSWER: 0.8541 (d) What is the probability that the mean score of these students is 547 or higher? ANSWER: 0.20

The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 542.9 and standard deviation o - 28.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 547 or higher? ANSWER: 0.4426 For parts (b) through (d), consider a simple random sample (SRS) of 35 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 35 students? The mean of the sampling distribution for is: 542.9 The standard deviation of the sampling distribution for is: 4.8005 (c) What z-score corresponds to the mean score of 547? ANSWER: 0.8541 (d) What is the probability that the mean score of these students is 547 or higher? ANSWER: 0.20

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
See similar textbooks
icon
Related questions
Question
The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 542.9 and standard deviation o = 28.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 547 or higher? ANSWER: 0.4426 For parts (b) through (d), consider a simple random sample (SRS) of 35 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 35 students? The mean of the sampling distribution for is: 542.9 The standard deviation of the sampling distribution for is: 4.8005 (c) What z-score corresponds to the mean score of 547? ANSWER: 0.8541 (d) What is the probability that the mean score of these students is 547 or higher? ANSWER: 0.20
Transcribed Image Text:The scores of students on the SAT college entrance examinations at a certain high school had a normal distribution with mean μ = 542.9 and standard deviation o = 28.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 547 or higher? ANSWER: 0.4426 For parts (b) through (d), consider a simple random sample (SRS) of 35 students who took the test. (b) What are the mean and standard deviation of the sample mean score , of 35 students? The mean of the sampling distribution for is: 542.9 The standard deviation of the sampling distribution for is: 4.8005 (c) What z-score corresponds to the mean score of 547? ANSWER: 0.8541 (d) What is the probability that the mean score of these students is 547 or higher? ANSWER: 0.20
Expert Solution
steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
SEE MORE TEXTBOOKS