Question: WHAT ARE THE CORRECT FORMULAS FOR PART C ON EXCEL? THE PART B FORMULA IS CORRECT. THE CORRECT ANSWERS ARE CORRECT IN THE QUESTION. The

WHAT ARE THE CORRECT FORMULAS FOR PART C ON EXCEL? THE PART B FORMULA IS CORRECT.

THE CORRECT ANSWERS ARE CORRECT IN THE QUESTION.

WHAT ARE THE CORRECT FORMULAS FOR PART C ON

The following table shows the actual demand observed over the last 11 years: 2 4 6 9 10 Year Demand 1 7 3 5 5 13 7 12 8 13 11 7 9 9 8 9 11 This exercise contains only parts b, c, and d. b) Using the 3-year moving average, provide the forecast from periods 4 through 12 (round your responses to one decimal place). Year 4 5 6 7 8 9 10 11 12 Forecast 7.0 7.7 9.0 10.0 11.0 11.0 11.3 11.0 9.0 c) Using the 3-year weighted moving average with weights 0.10, 0.30, and 0.60, using 0.60 for the most recent period, provide the forecast from periods 4 through 12 (round your responses to one decimal place). Year 4 5 6 7 8 9 10 11 12 8.4 Forecast 6.4 7.8 11.0 9.6 10.9 12.2 10.5 10.6 d) Mean absolute deviation for the forecast developed using the 3-year moving average is 2.33 and for the 3-year weighted moving average is 2.83. Based on this information, the better forecast is achieved using the 3-year moving average approach A B 9 A B C D 1 Year Registrations (000) 3 Year MA 2 1 7 3 2 9 4 3 5 5 4 9 =AVERAGE(B2:34) 65 13 =AVERAGE(B3:35) 76 8 =AVERAGE(B4:36) 8 7 12 =AVERAGE(B5:17) 98 13 =AVERAGE(B6:B8) 10 9 9 =AVERAGE(B7:39) 11 10 11 =AVERAGE(B8:B10) 12 11 7 =AVERAGE(B9:B11) 13 12 =AVERAGE(B10:B12) 14 15 Year Registrations (000) Weight 3 Year WMA 16 1 7 0.6 17 2 9 0.3 18 3 5 0.1 19 4 9 =SUMPRODUCT($C$16:$C$18,816:B18)/4 20 5 13 =SUMPRODUCT($C$16:$C$18,B17:319)/4 21 6 8 =SUMPRODUCT($C$16:$C$18,018:B20)/4 22 7 =SUMPRODUCT($C$16:$C$18,319:B21)/4 23 8 13 =SUMPRODUCT($C$16:$C$18,B20:B22)/4 24 9 9 =SUMPRODUCT($C$16:$C$18,B21:B23)/4 25 10 11 =SUMPRODUCT($C$16:$C$18,B22:B24)/4 26 11 7 =SUMPRODUCT($C$16:$C$18,B23:325)/4 27 12 =SUMPRODUCT($C$16:$C$18,B24:B26)/4 9 9 12 9

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