This is a template for improving one\'s estimating skills 3 MAR SUM ((A(t) /F (t

Question

This is a template for improving one's estimating skills 3 MAR SUM ((A(t) /F (t))-1l) /n Tracking Signal = SUM (A(t) / F (t))-1)/MAR Tracking 6 | Period | Forecast | Actual |(A(t)/F(t))-1|KA(t)/F(t))-11 | MARI Signal 163 240 67 78 71 423 49 157 0.052 0.008 0.457 0.130 0.053 0.230 0.125 0.227 155 0.052 -0.008 0.457 0.130 -0.053 0.230 0.125 0.227 10 0.030 1.448 0.172 2.904 0.162 3.898 0.140 4.120 0.155 5.205 0.15 4.523 0.160 5.670 242 12 13 75 15 16 17 18 19 | Cell D9 | = (C9/B9-1 copy to D10:D16 20 Cell E9ABS(D9) copy to E10:E16 21 Cell F10(Sum(SES9:E10)VA10 copy to F11:F16 22 Cell G10(Sum(SDS9:DI0)YF10 copy to G11:G16 56 128 Total- 0.908 1.281 Figure 7-5 Estimation template using ratios

Explanation / Answer

So, just using the template we get.

Period Forecast Actual (A(t)/F(t))-1 [((A(t)/F(t))-1] MAR 1 179 163 -0.089 0.089 2 217 240 0.106 0.106 0.098 0.170 3 91 67 -0.264 0.264 0.153 -1.615 4 51 78 0.529 0.529 0.247 1.142 5 76 71 -0.066 0.066 0.211 1.027 6 438 423 -0.034 0.034 0.181 1.005 7 64 49 -0.234 0.234 0.189 -0.276 8 170 157 -0.076 0.076 0.175 -0.735 Total = -0.129 1.399

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