C. total cost is increasing. d. per unit cost is increasing. Question 4 Cost estimation is most accurate when Not yet answered Select one: Points out of a. when the data used is limited to externally 1.00 audited accounting statements and reports. P Flag b. it uses data generated internally, and avoids question data sources outside the firm. C. all of the available data sources are utilized, without giving exclusive preference to one particular source. d. it utilizes data that is already available, and doesn't make use of data generating strategies such as market testing and market surveys. Question 5 Cost estimates will typically be more accurate in Not yet analyses of projects that are answered Points out of 1.00 Select one: a. more sensitive to the parameters used in the F11 96