The company in Exercise 11 is also interested in the impact of national indicators on its sales. It decides to obtain measurements for the unemployment rate (%) and inf lation rate (%) on a quarterly basis to compare with its quarterly sales ($ million) over the same time period.

Identify the Five W’s, name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative variable identify the units in which it was measured (or note that they weren’t provided or that the variable doesn’t have units).