Concept explainers
The correct statement that (a) use a larger confidence level, (b) use a smaller confidence level, (c) increase the
Answer to Problem 52E
Hence, the correct statement is (a).
Explanation of Solution
(a) A larger confidence level increases the accuracy. Thus,the width of the confidence interval will become larger.
(b) A larger confidence level decreases the accuracy. Thus, the width of the confidence interval will become smaller.
(c) As the sample size increases accuracy is decreases.Thus the width of the confidence interval decreases.
(d) Confidence interval does not depend on the number of interval.
(e) A larger confidence level will guarantee to get a larger interval. Thus, the statement is incorrect.
Hence, the correct statement is (a).
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Intro Stats
Elementary Statistics: Picturing the World (7th Edition)
Basic Business Statistics, Student Value Edition (13th Edition)
Essentials of Statistics (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