Concept explainers
The 2013 National Study of Substance Use Habits of College Student-Athletes surveyed student athletes at NCAA member colleges and universities. The passage below is from the survey website (ncaa.org/about/resources/research/about-survey, retrieved February 13, 2018).
All NCAA member institutions are asked to participate. The sampling plan achieves an appropriate representation of all NCAA student-athletes while minimizing burden to institutions by asking that all student-athletes on no more than three teams be surveyed on any campus. The teams surveyed are determined by a computer-generated random draw.
The survey is administered to the selected teams in a classroom setting, and no identifying information about the athletes or the college is collected. The web site also states
It is important to note that even with measures to ensure anonymity, self-reported data of this kind can be problematic due to the sensitive nature of the issues. Therefore, absolute levels of use might be underestimated in a study such as this.
a. Was this sample a simple random sample, a stratified sample, a cluster sample, a systematic sample, or a convenience sample? Explain.
b. Give two reasons why an estimate of the proportion of students who reported using illegal drugs based on data from this survey should not be generalized to all U.S. college students.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Introduction to Statistics and Data Analysis
Additional Math Textbook Solutions
Elementary Statistics: A Step By Step Approach
Elementary Statistics: Picturing the World (7th Edition)
Business Statistics: A First Course (8th Edition)
Developmental Mathematics (9th Edition)
Introductory Statistics
Introductory Statistics (10th Edition)
- Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGALBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
- College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning