Homework Help is Here – Start Your Trial Now!
Math
Statistics
indom sample of elght cell phones in of error and construct a 90% confidence interval for the population mean p. Interpret the results. ..... ify the margin of error. nd to one decimal place as needed.) truct a 90% confidence interval for the population mean. nd to one decimal place as needed.) pret the results. Select the correct choice below and fill in the answer box to complete your choice. e an integer or a decimal. Do not round.) ·With % confidence, it can be said that the population mean full retail price of cell phones (in dollars) is between the interval's endpoints. • With % confidence, it can be said that most cell phones in the population have full retail prices (in dollars) that are between the interval's endpoints. ·It can be said that % of the population of cell phones have full retail prices (in dollars) that are between the interval's endpoints. % of all random samples of eight people from the population of cell phones will have a mean full retail price (in dollars) that is between the interval's endpoints.

indom sample of elght cell phones in of error and construct a 90% confidence interval for the population mean p. Interpret the results. ..... ify the margin of error. nd to one decimal place as needed.) truct a 90% confidence interval for the population mean. nd to one decimal place as needed.) pret the results. Select the correct choice below and fill in the answer box to complete your choice. e an integer or a decimal. Do not round.) ·With % confidence, it can be said that the population mean full retail price of cell phones (in dollars) is between the interval's endpoints. • With % confidence, it can be said that most cell phones in the population have full retail prices (in dollars) that are between the interval's endpoints. ·It can be said that % of the population of cell phones have full retail prices (in dollars) that are between the interval's endpoints. % of all random samples of eight people from the population of cell phones will have a mean full retail price (in dollars) that is between the interval's endpoints.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
100%
I need help with this pls
In a random sample of eight cell phones, the mean full retail price was $551.00 and the standard deviation was $222.00. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean u. Interpret the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 90% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that the population mean full retail price of cell phones (in dollars) is between the interval's endpoints. O B. With % confidence, it can be said that most cell phones in the population have full retail prices (in dollars) that are between the interval's endpoints. O C. It can be said that % of the population of cell phones have full retail prices (in dollars) that are between the interval's endpoints. OD. % of all random samples of eight people from the population of cell phones will have a mean full retail price (in dollars) that is between the interval's endpoints.
Transcribed Image Text:In a random sample of eight cell phones, the mean full retail price was $551.00 and the standard deviation was $222.00. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 90% confidence interval for the population mean u. Interpret the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 90% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that the population mean full retail price of cell phones (in dollars) is between the interval's endpoints. O B. With % confidence, it can be said that most cell phones in the population have full retail prices (in dollars) that are between the interval's endpoints. O C. It can be said that % of the population of cell phones have full retail prices (in dollars) that are between the interval's endpoints. OD. % of all random samples of eight people from the population of cell phones will have a mean full retail price (in dollars) that is between the interval's endpoints.
In a random sample of five people, the mean driving distance to work was 20.3 miles and the standard deviation was 6.6 miles. Assuming the population is normally distributed and using the t-distribution, a 99% confidence interval for the population mean p is (6.7, 33.9) (and the margin of error is 13.6). Through research, it has been found that the population standard deviation of driving distances to work is 5.7. Using the standard normal distribution with the appropriate calculations for a standard deviation that is known, find the margin of error and construct a 99% confidence interval for the population mean u. Interpret and compare the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 99% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that the population mean driving distance to work (in miles) is between the interval's endpoints. O B. % of all random samples of five people from the population will have a mean driving distance to work (in miles) that is between the interval's endpoints. O C. It can be said that % of the population has a driving distance to work (in miles) that is between the interval's endpoints. O D. With % confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints. Compare these results to the results that used the t-distribution. The new confidence interval is v the confidence interval that used the t-distribution and has center.
Transcribed Image Text:In a random sample of five people, the mean driving distance to work was 20.3 miles and the standard deviation was 6.6 miles. Assuming the population is normally distributed and using the t-distribution, a 99% confidence interval for the population mean p is (6.7, 33.9) (and the margin of error is 13.6). Through research, it has been found that the population standard deviation of driving distances to work is 5.7. Using the standard normal distribution with the appropriate calculations for a standard deviation that is known, find the margin of error and construct a 99% confidence interval for the population mean u. Interpret and compare the results. Identify the margin of error. (Round to one decimal place as needed.) Construct a 99% confidence interval for the population mean. (Round to one decimal place as needed.) Interpret the results. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) O A. With % confidence, it can be said that the population mean driving distance to work (in miles) is between the interval's endpoints. O B. % of all random samples of five people from the population will have a mean driving distance to work (in miles) that is between the interval's endpoints. O C. It can be said that % of the population has a driving distance to work (in miles) that is between the interval's endpoints. O D. With % confidence, it can be said that most driving distances to work (in miles) in the population are between the interval's endpoints. Compare these results to the results that used the t-distribution. The new confidence interval is v the confidence interval that used the t-distribution and has center.
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS