Question: Using the cost estimation template and Actuals in Figure 7-5, compare the model in the figure with the following estimates derived from a multiplicative model.

Using the cost estimation template and Actuals in Figure 7-5, compare the model in the figure with the following estimates derived from a multiplicative model.
Base your comparison on the mean bias, the MAR, and the tracking signal. Comment.

In Figure7-5

This is a template for improving one's estimating skills 3 MAR SUM [l(A(t)/F (t)-1) /n 4 Tracking Signal SUMt(A(t)/F (t)- 1)/MAR Tracking 6 Period Forecast Actual (A(t)/F(t))-1(A(t)F() MAR Signal 155 242 46 69 75 163 240 67 78 71 423 49 157 0.052 -0.008 0.457 0.130 -0.053 0.230 -0.125 0.227 0.052 0.008 0457 0.130 0.053 0.230 0.125 0.227 0.030 1.448 0.172 2.904 0.162 3.898 0.140 4.120 0.155 5.205 0.151 4.523 0.160 5.670 10 12 13 6 56 128 15 16 17 18 Key Formulae 19 Cell D9 (C9-B9)-1 copy to D10:D16 20 Cell E9 ABS(D9) copy to E10:E16 21 Cell F10(Sum(SE$9:E10/A10 copy to F11:F16 22 Cell G10(Sum(SD$9:D10)/F10 copy to G11:G16 Total 0.908 1.281

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