To explain: Whether the students are getting higher marks after joining the chess program. Explain it by providing the statistical evidence.
Answer to Problem 31E
Yes, students are getting higher marks
Explanation of Solution
Given:
The boxplots are:
It could be noted the provided boxplots of Pre and Post are overlapping and the difference of Post-pre is falling below 0 which implies that there is no improvement in the scores of the all students after joining the chess programs.
It could be also noted that the median and mean of difference are non-negative which implies the improvement in the scores. Thus, it could be said that there is improvement in the scores of the students after joining the chess programs but not of the majority of the students.
It could be concluding that before of the chess students are obtaining higher reading scores.
Chapter 6 Solutions
The Practice of Statistics for AP - 4th Edition
Additional Math Textbook Solutions
Basic Business Statistics, Student Value Edition
Statistics for Psychology
Elementary Statistics (13th Edition)
Introductory Statistics (10th 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