a)
To find population and sample.
a)
Answer to Problem 37E
Population is national adults and sample is 178,545 people.
Explanation of Solution
Given:
A Gallup poll asked whether people experienced stress "a lot of the day yesterday." Forty percent said they did. Gallup's report said, "Results are based on telephone interviews with 178,545 national adults, aged 18 and older.
First need to understand about sample and population.
Population: It is the set of all the possible individuals possessing the characteristic of interest in a study.
Sample: it is the subset of population on which, the actual study performed and from which, the necessary measurements are taken.
Here, population is national adults. The sample is selected 178,545 national adults of who the telephone interviews were taken.
b)
To Explain undercoverage bias.
b)
Explanation of Solution
Given:
A Gallup poll asked whether people experienced stress "a lot of the day yesterday." Forty percent said they did. Gallup's report said, "Results are based on telephone interviews with 178,545 national adults, aged 18 and older.
The given survey is done by a telephone. Therefore, there might be a different opinion of people who don’t have telephone. Therefore, the selected sample does not be a representative of a population. This leads to be undercoverage bias.
Chapter 5 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Statistics: The Art and Science of Learning from Data (4th Edition)
Elementary Statistics Using Excel (6th Edition)
Fundamentals of Statistics (5th Edition)
Basic Business Statistics, Student Value Edition (13th Edition)
Statistics for Business and Economics (13th 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