1. What is the difference between a linear and a nonlinear cost function? Give an example of each type of cost function
2. "High correlation between two variables means that one is the cause and the other is the effect." Do you agree? Explain.
3. When using the high-low method, should you base the high and low observations on the dependent variable or on the cost driver?
4. "All the independent variables in a cost function estimated with regression analysis are cost drivers." Do you agree? Explain