Instructions |
The Data contains the actual values for 12 periods (listed in order, 1-12). In Excel, create forecasts for periods 6-13 using each of the following methods: 5 period simple moving average; 4 period weighted moving average (0.63, 0.26, 0.08, 0.03); exponential smoothing (alpha = 0.23 and the forecast for period 5 = 53); linear regression with the equation based on all 12 periods; and quadratic regression with the equation based on all 12 periods. Round all numerical answers to two decimal places. |
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Data
The actual values for 12 periods (shown in order) are:
(1) 45 (2) 52 (3) 48 (4) 59 (5) 55 (6) 54 (7) 64 (8) 58 (9) 67 (10) 66 (11) 70 (12) 76
Questions
a) Using a 5 period simple moving average, the forecast for period 13 will be:
b) Using the 4 period weighted moving average, the forecast for period 13 will be:
c) With exponential smoothing, the forecast for period 13 will be:
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