1.21 Three professors at Northern Kentucky University

Question

compared two different approaches to teaching courses in
the school of business (M. W. Ford, D. W. Kent, and S.
Devoto, “Learning from the Pros: Influence of Web-Based
Expert Commentary on Vicarious Learning about Financial
Markets,” Decision Sciences Journal of Innovative
Education, January 2007, 5(1), 43–63). At the time of the
study, there were 2,100 students in the business school and
96 students were involved in the study. Demographic data
collected on these 96 students included class (freshman,
sophomore, junior, senior), age, gender, and major.
a. Describe the population of interest.
b. Describe the sample that was collected.
c. For each of the four demographic variables mentioned
above, indicate if they are categorical or numerical.