NotesFAQContact Us
Collection
Advanced
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ829095
Record Type: Journal
Publication Date: 2008-Aug
Pages: 6
Abstractor: As Provided
Reference Count: 9
ISBN: N/A
ISSN: ISSN-0021-9584
Using Candy Samples to Learn about Sampling Techniques and Statistical Data Evaluation
Canaes, Larissa S.; Brancalion, Marcel L.; Rossi, Adriana V.; Rath, Susanne
Journal of Chemical Education, v85 n8 p1083-1088 Aug 2008
A classroom exercise for undergraduate and beginning graduate students that takes about one class period is proposed and discussed. It is an easy, interesting exercise that demonstrates important aspects of sampling techniques (sample amount, particle size, and the representativeness of the sample in relation to the bulk material). The exercise also explores a simple statistical approach to commonly used parameters (mean, median, standard deviation, errors, quartiles, confidence limits); the presentation of results using histogram, box-plot and whisker plot; and the related tests (normality, outliers, significance) using parametric and non-parametric statistical methods. (Contains 7 tables and 3 figures.)
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A