Concept explainers
To explain what might the
Answer to Problem 33E
The mean GPA will be
Explanation of Solution
It is given in the question that a college’s data about the incoming freshmen indicates that the mean of their high school GPAs was
Random condition: It is satisfied as the freshmen are randomly assigned to writing seminars.
Success/failure condition: It is satisfied as the distribution for this sample size is uni-modal and approximately normal so,
Thus, all the conditions and assumptions are met. Thus, the sampling distribution model is Normal model with the mean and the standard deviation as:
And the sketch using the
Chapter 18 Solutions
Stats: Modeling the World Nasta Edition Grades 9-12
Additional Math Textbook Solutions
Statistics for Psychology
Elementary Statistics (13th Edition)
Introductory Statistics
Introductory Statistics (10th 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