
Chapter 15 | Multiple Regression Analysis 537
FIGURE 15.45
SPSS output for Example 15.3
with interaction term
15E1. A multinational pharmaceutical company has an estab-
lished research and development department. The company
wants to ascertain the effect of age and gender on number
of international research publications of its employees. The
company has taken a random sample of 15 employees. The
following table contains information related to age, gender,
and the number of research publications of these employees.
Fit a regression model, considering the number of research
publications as the dependent variable and age and gender as ...