Cost that are the same for two alternatives and are not affected by a decision are a) opportunity cost b) sunk cost e) differential cost d) irrelevant and should be ignored 8. If an activity decreases, the fixed cost per unit should a) increase b) decrease c) not change d) none of these 9. Which of the following is not a period cost? a) janitorial staff for the factory b) administrative salaries e) shipping costs d) sales commissions (compensation for selling products) 10. Which of the following is included in both prime costs and conversion costs? a) direct materials b) direct labor c) manufacturing overhead d) indirect cost 11. Emphasizes decisions affecting the future rather than the results of past activities, A) Managerial Accounting B) Financial Accounting C) Both Managerial and Financial Accounting D) Neither Managerial or Financial Accounting 12. Mandatory reporting to external users such as the SEC and must follow a set of generally accepted rules. A) Managerial Accounting B) Financial Accounting C) Both Managerial and Financial Accounting D) Neither Managerial or Financial Accounting