Quantitative analysis methods estimate cost functions O A. using the pooling of knowledge from each value chain function OB. using a formal mathematical method to fit cost functions to past data observations O C. using the time - and - motion studies O D. based on analysis and opinions gathered from various departments

Quantitative analysis methods estimate cost functions A. using the pooling of knowledge from each value chain function B. using a formal mathematical method to fit cost functions to past data observations C. using the time - and-motion studies D. based on analysis and opinions gathered from various departments