1. Refining a decision tree model means to:

A. increase its complexity

B. reduce its complexity

C. ensure the data represents the business context

D. Decrease its cost

2. in a decision tree, which of the following are indicated by circles

A. Terminal nodes

B. Cuts

C. Decision nodes

D. Leafs

3. Which of the following statements is true of strategic analysis of operating income?

A. Change in operating income from one period to any future period can be subdivided into product differentiation, cost leadership, and growth components.

B. It focuses on differences in individual categories of costs( direct materials, direct manufacturing labor, and overheads)

C. Subdividing the change in operating income to evaluate the success of a strategy has no similarity to the variance analysis.

D. Management accountants compare actual and budgeted operating performance over the same time periods.