Concept explainers
To explain do identical twins living in low-income homes tend to have lower IQs later in life than their twins who live in high-income homes.
Answer to Problem 101E
There is evidence that identical twins living in low-income homes tend to have lower IQs later in life than their twins who live in high-income homes.
Explanation of Solution
In the question, it is given that a researcher studied a group of identical twins who had been separated and adopted at birth. Thus, now, we will calculate the mean for both the twins as:
We then note that the difference in IQ scores is about five points but this difference could be due to chance since the
Chapter 4 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Elementary Statistics Using Excel (6th Edition)
Elementary Statistics: Picturing the World (6th Edition)
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