Concept explainers
(a)
Explain the reason for insufficient information to give confidence interval for men and women separately.
(a)
Answer to Problem 42E
Insufficient information to construct confidence interval for men and women separately.
Explanation of Solution
To construct a confidence interval information of sample proportion and
Hence, it is not possible to construct confidence interval for men and women separately.
(b)
Explain whether the margin of error for the confidence interval of 95% isless than, greater than or about equal to 0.03.
(b)
Answer to Problem 42E
The margin of error for the confidence interval of 95% will be greater than 0.03.
Explanation of Solution
Given information:
Confidence interval = 95%
Margin of error = 0.03
The sample size of women is less than the sample size of both men and women.
Since decreased in the size of sample result in a less accurate prediction thus increased in the margin of error.Thus, the margin of error for womenwill be greater than the 3% margin of error for men and women.
Hence, the margin of error for the confidence interval of 95% will be greater than 0.03.
Chapter 8 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Introductory Statistics (2nd Edition)
Elementary Statistics
Essentials of Statistics (6th Edition)
Introductory Statistics
An Introduction to Mathematical Statistics and Its Applications (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