backA hospital emergency room has collected a sample of 50 to estimate the mean number of visits perday. The sample standard deviation was found to be 30. Using a 95 percent confidence level, what isits margin of error?10.215.58.511.407.1

given data n = 50 s = 30 95% ci for mean. E = ?

Answered: A hospital emergency room has collected…

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

Similar questions

In a random sample of 50 people, the mean body mass index (BMI) was 27.7 and the standard deviation (s) was 6.12. a. Construct a 90% confidence interval for the population mean. b. Construct a 96% confidence interval for the population mean.
An farmer is convinced that the weighing instrument for palay had a variability measured by standard deviation equal to 2. He recorded the measurements 4.1, 6.5, 5.2 and 10.2. Do these data confirm or disprove his assertion? Use a 95% confidence level.
In a recent sample of 89 used cars sales costs, the sample mean was $6,225 with a standard deviation of $3,151. Assume the underlying distribution is approximately normal. Which distribution should you use for this problem? Construct a 95% confidence interval for the population mean cost of a used car.
An investigation of emergency room wait time surveyed 50 patients and found a mean wait time of 1.5 hours with a standard deviation of 0.5 hours. Construct a 95% confidence interval for patient wait time. Round your answer to the nearest hundredth. Lower ___ hours Upper ___ hours
In a random sample of 12 people,the mean driving distance to work was 23.5 miles and the standard deviation was 6.8.Asume the population is normally distributed to find the margin of error and construct a 95% confidence for population μ.Interpret results.
Sales personnel for Skilling Distributors submit weekly reports listing the customer contacts made during the week. A sample of 15 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 5.2. Provide a 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel.
Ohio is surveying the price of nitrogen, which is necessary for many manufacturing processes. The state surveyed 60 stores across the state; the mean price is $0.31 per pound, and the standard deviation is $0.05. The confidence level is 95%. What is the margin of error? O 0.0125 O 0.0127 O 0.0129 O 0.0131
In a random sample of eleven people, the mean driving distance to work was 18.1 miles and the standard deviation was 7.6 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Interpret the results.
In a sample of 100 individuals, the average height is 170 cm and the standard deviation is 15 cm. Using a 95% confidence level, what is the margin of error for the mean height of the population?
In a random sample of twelve people, the mean driving distance to work was 21.3 miles and the standard deviation was 7.3 miles. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 99% confidence interval for the population mean μ. Interpret the results. Identify the margin of error. (Rol square miles miles per hour miles s needed.)
A survey of 73 randomly selected homeowners finds that they spend a mean of $74 per month on home maintenance. Construct a 95% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners. Assume that the population standard deviation is $16 per month. Round to the nearest cent.
A survey of 84 randomly selected homeowners finds that they spend a mean of $60 per month on home maintenance. Construct a 98% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners. Assume that the population standard deviation is $14 per month. Round to the nearest cent. Lower endpoint: Upper endpoint:

SEE MORE QUESTIONS

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

SEE MORE TEXTBOOKS

A hospital emergency room has collected a sample of 50 to estimate the mean number of visits per day. The sample standard deviation was found to be 30. Using a 95 percent confidence level, what is its margin of error? 10.2 15.5 8.5 114 71