Find z, for the 84% confidence interval for the2population mean.O a. 0.7955O b. 1.44O c. Noneo d. 0.99O e. 1.41

Answered: Image /qna-images/answer/1a8c58ce-84ee-4089-a35a-cb12772998a5.jpg

Answered: Find z, for the 84% 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

See similar textbooks

Similar questions

Construct the confidence interval for the population mean μ. c=0.98, x=16.6, σ=7.0, and n= 70 A 98% confidence interval for μ is ?
A fitness center is interested in finding a 90% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 225 members were looked at and their mean number of visits per week was 2.1 and the standard deviation was 1.9. Round answers to 3 decimal places where possible. a. With 90% confidence the population mean number of visits per week is between and visits. b. If many groups of 225 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of visits per week and about percent will not contain the true population mean number of visits per week.
RD.24.
A sample of the length in inches for newborns is given below. Assume that lengths are normally distributed. Find the 99% confidence interval of the mean length. Length 15.2 15.6 20.6 16.3 15.4 17.4 18.1 20.6 18.6 20.7
Construct a confidence interval for ud, the mean of the differences d for the population of paired data. Assume that the population of paired differences is normally distributed. If d = 3.125, Sd = 2.911, and n = 8, determine a 95 percent confidence interval for ud. 0.691 Hd <3.986 O 2.264 < d < 3.986 O 2.264 < d < 5.559 O 0.691 < d < 5.559
Construct the indicated confidence interval for the population mean u using the t-distribution. c = 0.99, x = 22.4, s = 3.8, n = 19 O (17.2, 23.6) O (19.9, 24.9) O (18.7, 24.1) O (16.3, 26.9)
Sales personnel for Skillings Distributors submit weekly reports listing the customer contacts made during the week. A sample of 65 weekly reports showed a sample mean of 19.5 customer contacts per week. The sample standard deviation was 4.2. Provide a 90% confidence interval for the population mean number of weekly customer contacts for the sales personnel. (Round your answers to two decimal places.) _________ contacts/week to ___________contacts/week Provide 95% confidence interval for the population mean number of weekly customer contacts for the sales personnel. (Round your answers to two decimal places.) ___________contacts/week to ___________contacts/week
A fitness center is interested in finding a 90% confidence interval for the mean number of days per week that Americans who are members of a fitness club go to their fitness center. Records of 213 members were looked at and their mean number of visits per week was 2.2 and the standard deviation was 1.7. Round answers to 3 decimal places where possible. b. With 90% confidence the population mean number of visits per week is between ? and ? visits. c. If many groups of 213 randomly selected members are studied, then a different confidence interval would be produced from each group. About ?percent of these confidence intervals will contain the true population mean number of visits per week and about ? percent will not contain the true population mean number of visits per week.
A confidence interval for a population mean has a margin of error of 2.2. a. Determine the length of the confidence interval. b. If the sample mean is 52.7, obtain the confidence interval. c. Construct a graph that illustrates your results. a. The length of the confidence interval is. (Type an integer or a decimal. Do not round.) b. The confidence interval for μ is from to. (Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. O C. 48 Confidence Interval CI M G -C... O B. O D. CI H Confidence Interval EE 55 Q G B
A laboratory tested 85 chicken eggs and found that the mean amount of cholesterol was 191 milligrams. Assume that o = 16.2 milligrams. Construct a 95% confidence interval for the true mean cholesterol content, µ, of all such eggs. Round to one decimal place. O A. 186.9 to 195.1 milligrams B. 186.5 to 195.5 milligrams C. 188.1 to 193.9 milligrams D. 187.6 to 194.4 milligrams
Please answer within 30min thanks. n = 29 for the 90% confidence interval for the mean.
With 99% confidence, maximum error is 0.06 and the proportion p = 0.5. Find the sample size. a. 463 b. 436 c. 364 d. 643 e. NONE OF THE ABOVE A

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

Find z, for the 84% confidence interval for the population mean. O a. 0.7955 O b. 1.44 O c. None O d. 0.99 O e. 1.41