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Braun, W. John – Journal of Statistics Education, 2012
The Analysis of Variance is often taught in introductory statistics courses, but it is not clear that students really understand the method. This is because the derivation of the test statistic and p-value requires a relatively sophisticated mathematical background which may not be well-remembered or understood. Thus, the essential concept behind…
Descriptors: Statistical Analysis, Visual Aids, Mathematics Instruction, Introductory Courses
Zhou, Lutong; Braun, W. John – Journal of Statistics Education, 2010
The increasing popularity of R is leading to an increase in its use in undergraduate courses at universities (R Development Core Team 2008). One of the strengths of R is the flexible graphics provided in its "base" package. However, students often run up against its limitations, or they find the amount of effort to create an interesting plot may…
Descriptors: Computer Software, Undergraduate Students, Computer Graphics, Visual Aids