Refer to Case 6.1, the Barrage Construction Company, in Chapter 6. The project manager Sean Shawn employed the analogy with adjustment method to estimate the cost of constructing a three-car garage. Specifically, he started with the cost of an average two-car garage, $43,000, and increased it by 50 percent to $64,500. Comment on the likely accuracy of the three-car garage estimate. Suggest a different approach that might yield a more accurate cost estimate, and then use this approach and made-up time and cost figures to compute the estimate. Argue why your estimate is better than Sean’s. See Chapter 6, Figure 6.19, for Sean’s WBS.