12. The Institute of Management Accountants has adopted a set of standards for ethical conduct which includes ________. A) competence, integrity, confidentiality and objectivity B) competence, integrity, morality and confidentiality C) competence, confidentiality, credibility and objectivity D) competence, confidentiality, credibility and integrity

13. Cost drivers are ________. A) the different functions in the value chain B) different types of functional areas in the firm C) different types of cost calculations D) measures of activities that require the use of resources and thereby cause costs

14. Consider the following activity: The installation of seats by a bus manufacturer in a school bus. What is an appropriate cost driver for the labor resources used for this activity? A) number of service center hours B) number of engineering hours C) number of mechanic hours D) number of labor hours used to install seats

15. Within the relevant range, the total amount of ________ cost changes in direct proportion to changes in the cost driver. Within the relevant range, the total amount of ________ cost does not change in direct proportion to changes in the cost driver. A) fixed; variable B) step; mixed C) mixed; step D) variable; fixed

16. Which of the following costs is a variable cost? A) rental expense for factory building for manufacturer of electronics B) fuel for airplane for airline C) lease cost for factory machine for manufacturer of electronics D) depreciation expense of airplane for airline