Homework Help is Here – Start Your Trial Now!
Math
Statistics
a. The length of the confidence interval is D: Type an integer or a decimal. Do not round.) p. The confidence interval for u is from to Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. OB. Confidence Interval CI - E 43 OC. O D. Confidence Interval -

a. The length of the confidence interval is D: Type an integer or a decimal. Do not round.) p. The confidence interval for u is from to Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. OB. Confidence Interval CI - E 43 OC. O D. Confidence Interval -

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

15. See photo 

A confidence interval for a population mean has a margin of error of 2.4. a. Determine the length of the confidence interval. b. If the sample mean is 46.8, 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 u is from to (Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. О В. Confidence Interval 43 51 43 O D. Confidence Interval- 42 49 42 49 of of -- C.
Transcribed Image Text:A confidence interval for a population mean has a margin of error of 2.4. a. Determine the length of the confidence interval. b. If the sample mean is 46.8, 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 u is from to (Type integers or decimals. Do not round.) c. Choose the correct graph below. O A. О В. Confidence Interval 43 51 43 O D. Confidence Interval- 42 49 42 49 of of -- C.
Expert Solution
Step 1

a.

The length of the confidence error = 2 × margin of error

                                                        = 2 × 2.4

                                                        = 4.8

 

b.

The confidence interval of population mean μ is given by

CIpopulation mean  = Sample mean ± margin of error

                          = x - E,       x + E

                         = 46.8 - 2.4,     46.8 + 2.4

                         = 44.4,        49.2

Thus the confidence interval of μ is from 44.4 to 49.2.

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
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