Concept explainers
a.
To construct: The 95% confidence interval using the provided information.
a.
Answer to Problem 51E
The confidence interval is
Explanation of Solution
Given:
Formula used:
The formula to construct the confidence interval for population proportion is:
Calculation:
The obtained Excel output is:
From the above output, the confidence interval is
b.
To explain: The claim of DMV using the result of above part.
b.
Explanation of Solution
From the confidence interval obtained in above part, it is clear that the value 0.60 does not lie in the computed interval. Thus, it could be said that claim of DMV is incorrect.
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Fundamentals of Statistics (5th Edition)
Essentials of Statistics (6th Edition)
Statistics for Business and Economics (13th Edition)
Intro Stats, Books a la Carte Edition (5th Edition)
Elementary Statistics Using Excel (6th Edition)
- MATLAB: An Introduction with ApplicationsStatisticsISBN:9781119256830Author:Amos GilatPublisher:John Wiley & Sons IncProbability and Statistics for Engineering and th...StatisticsISBN:9781305251809Author:Jay L. DevorePublisher:Cengage LearningStatistics for The Behavioral Sciences (MindTap C...StatisticsISBN:9781305504912Author:Frederick J Gravetter, Larry B. WallnauPublisher:Cengage Learning
- Elementary Statistics: Picturing the World (7th E...StatisticsISBN:9780134683416Author:Ron Larson, Betsy FarberPublisher:PEARSONThe Basic Practice of StatisticsStatisticsISBN:9781319042578Author:David S. Moore, William I. Notz, Michael A. FlignerPublisher:W. H. FreemanIntroduction to the Practice of StatisticsStatisticsISBN:9781319013387Author:David S. Moore, George P. McCabe, Bruce A. CraigPublisher:W. H. Freeman