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Time series analysis;Smoothing techniques; RMSE pptx

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jyothi s basavaraju

- The document shows quarterly data for a firm's actual market share compared to 3-quarter and 5-quarter moving average forecasts. - It includes the quarter, actual share, both forecasts, and the errors between actual and each forecast squared. - The totals at the bottom sum the squared errors between actual and each forecast over the periods shown.

Economy & Finance
1 of 14
Quarter Firm’s actual market share Three-quarter Moving Average Forecast (F) A-F (A-F)2 Five-quarter Moving Average Forecast (F) A-F (A-F)2 1 20 - - - - - - 2 22 - - - - - - 3 23 - - - - - - 4 24 21.67 2.33 5.4289 - - - 5 18 23.00 -5.00 25.0000 - - - 6 23 21.67 1.33 1.7689 21.4 1.6 2.56 7 19 21.67 -2.67 7.1289 22.0 -3.0 9.00 8 17 20.00 -3.00 9.0000 21.4 -4.4 19.36 9 22 19.67 2.33 5.4289 20.2 1.8 3.24 10 23 19.33 3.67 13.4689 19.8 3.2 10.24 11 18 20.67 -2.67 7.1289 20.8 -2.8 7.84 12 23 21.00 2.00 4.0000 19.8 3.2 10.24 total 78.3534 total 62.48 13 - 21.33 20.6
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Time series analysis;Smoothing techniques; RMSE pptx

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  • 6. Quarter Firm’s actual market share Three-quarter Moving Average Forecast (F) A-F (A-F)2 Five-quarter Moving Average Forecast (F) A-F (A-F)2 1 20 - - - - - - 2 22 - - - - - - 3 23 - - - - - - 4 24 21.67 2.33 5.4289 - - - 5 18 23.00 -5.00 25.0000 - - - 6 23 21.67 1.33 1.7689 21.4 1.6 2.56 7 19 21.67 -2.67 7.1289 22.0 -3.0 9.00 8 17 20.00 -3.00 9.0000 21.4 -4.4 19.36 9 22 19.67 2.33 5.4289 20.2 1.8 3.24 10 23 19.33 3.67 13.4689 19.8 3.2 10.24 11 18 20.67 -2.67 7.1289 20.8 -2.8 7.84 12 23 21.00 2.00 4.0000 19.8 3.2 10.24 total 78.3534 total 62.48 13 - 21.33 20.6
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