Suppose we want to describe whether Internet use is more strongly associated with GDP or with unemployment rate.
a. Can we compare the slopes when GDP and unemployment rate each predict Internet use in separate regression equations? Why or why not?
b. According to the correlation matrix in Table 12.2, part of which is shown below, which is more strongly associated with Internet use? Why?
INTERNET
GDP .................0.938
Unemployment rate ..0.238
CO2 ........0.569