Please answer the following questions in your own words. This assignment is designed to ensure that you have gained a basic understanding of the reading, and will be graded mostly for completeness, with a small amount of variation for the quality of the response. 1. What might cause a predetermined overhead rates to give inaccurate product costs? 2. What are the four hierarchical activity levels in the chapter? Give an example for each. 3. Describe the two stages performed when using activity-based costing 4. Why would low volume products be under costed when using conventional costing methods as opposed to activity-based costing