4.

Which of the following allow meaningful comparison of statistics?

a.	interval data	c.	ratio data
b.	categorical data	d.	ordinal data

ABCD

5.

Which of the following inputs of a decision model is an example of data?

a.	estimated consumer demand	c.	costs
b.	inflation rates	d.	investment allocations

ABCD

6.

Which decision model incorporates the process of optimization?

a.	predictive	c.	descriptive
b.	prescriptive	d.	normative