Q Question 1 20 / 20 pts Describe phase estimating. When should it be used and how is it different from all other top-down and bottom-up methods of estimating? Question 2 20 / 20 pts Identify and describe the four stages of the Project Life Cycle. Provide an example for each stage. Question 3 20 / 20 pts There are often considerable differences in how projects are managed within certain firms, even if the same project management structure is being used. Explain how and why this phenomenon occurs and what can be done to ensure consistency. Question 4 20 / 20 pts Identify the drawbacks of an excessive level of detail in estimating project times and costs.