Q.4.1 Below is a table showing the total budgeted costs, in thousands, for each task in a project. Answer the question that follows. Calculate the cumulative budgeted costs for the following months: a. Month 2 b. Month 5 c. Month 9 Q.4.2 In your own words, explain how Resource levelling is achieved. Q.4.3 Explain using examples, the concepts of cost estimating and cost control in project budgeting