Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 1079 parents of children ages 8-14, 73% say they are willing to get a second or part-time job to pay for their children's college education and 43% say they lose sleep worrying about college costs. The survey's margin of error is +3%. Use the results from the survey about getting a second or part-time job. The confidence interval for the proportion is (0.700 0.760 (Round to three decimal places as needed.) Use the results from the survey about getting second or part-time job. The interval is a % confidence interval. (Round to one decimal place as needed.) Use the results from the survey about losing sleep. The confidence interval for the proportion is ( UD (Round to three decimal places as needed.) Use the results from the survey about losing sleep. The interval is a (Round to one decimal place as needed.) % confidence interval.
Translate the statement into a confidence interval. Approximate the level of confidence. In a survey of 1079 parents of children ages 8-14, 73% say they are willing to get a second or part-time job to pay for their children's college education and 43% say they lose sleep worrying about college costs. The survey's margin of error is +3%. Use the results from the survey about getting a second or part-time job. The confidence interval for the proportion is (0.700 0.760 (Round to three decimal places as needed.) Use the results from the survey about getting second or part-time job. The interval is a % confidence interval. (Round to one decimal place as needed.) Use the results from the survey about losing sleep. The confidence interval for the proportion is ( UD (Round to three decimal places as needed.) Use the results from the survey about losing sleep. The interval is a (Round to one decimal place as needed.) % confidence interval.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
Transcribed Image Text:Translate the statement into a confidence interval. Approximate the level of confidence.
In a survey of 1079 parents of children ages 8-14, 73% say they are willing to get a second or part-time job to pay for their children's college education and 43% say they lose sleep worrying about college
costs. The survey's margin of error is +3%.
Use the results from the survey about getting a second or part-time job.
The confidence interval for the proportion is (0.7000.760)
(Round to three decimal places as needed.)
Use the results from the survey about getting a second or part-time job.
The interval is a % confidence interval.
(Round to one decimal place as needed.)
Use the results from the survey about losing sleep.
The confidence interval for the proportion is
(Round to three decimal places as needed.)
Use the results from the survey about losing sleep.
The interval is a % confidence interval.
(Round to one decimal place as needed.)
Transcribed Image Text:The prices of a random sample of 23 new motorcycles have a sample standard deviation of $3726. Assume the sample is from a normally distributed population. Construct a confidence interval for the
population variance o and the population standard deviation o. Use a 99% level of confidence. Interpret the results.
What is the confidence interval for the population variance o2?
(I) (Round to the nearest integer as needed.)
Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Round to the nearest integer as needed.)
O A. With 99% confidence, you can say that the population variance is less than
O B. With 99% confidence, you can say that the population variance is between
and
OC. With 1% confidence, you can say that the population variance is between
O D. With 1% confidence, you can say that the population variance is greater than
and
What is the confidence interval for the population standard deviation a?
!) (Round to the nearest integer as needed.)
Interpret the results. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Round to the nearest integer as needed.)
O A. With 1% confidence, you can say that the population standard deviation is between $
and O B. With 1% confidence, you can say that the population standard deviation is less than $
O C. With 99% confidence, you can say that the population standard deviation is beaveen $
O D. With 99% confidence, you can say that the population standard deviation is greater than
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 5 steps with 4 images
Recommended textbooks for you
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman