This text may be freely shared among individuals, but it may not be republished in any medium without express written consent from the author and advance notification of the editor. The student must tackle the problem of obtaining an adequate amount of data yet at the same time controlling the budget of the analysis. There is no clear indication by the author as to how much information would be appropriate which seems to be left as an open question for the student. The data are stored in a clearly delimited text file, which is easily accessible to packages like Excel, SAS, and S-Plus. After submitting the user's password, the program automatically updates the password list indicating that the user has already used the simulation.
Instructors can reproduce students' simulations.
This is another safeguard feature that instructors can rely upon in case they would like to check the students' work. Sample assignments and technical notes are provided. The author provides a list of questions that would be useful for instructors as a guideline. In addition, the author provides a supplemental document for instructors containing technical notes, including how to set up the program and how to make use of the password file. An interesting feature of this package is that, in addition to regression, it contains sampling issues including simple vs. stratified sampling, a two-stage sampling scheme, and various choices of stratification variables.