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Income at the architectural 1rm Spraggins and Yunes for the period February to J

ID: 3277837 • Letter: I

Question

Income at the architectural 1rm Spraggins and Yunes for the period February to July was as follows February March April May June Juy Month Income ($1000's) 75.0 71.5 664 723 735 74.0 Assume that the initial forecast for February 70 0 housands) and the nitial trend 3 ustrnerisThe smoothing cor starts selected are a-01 and 0 3 Using her ta sted e po forecast for the archidectural frm's August income sthousand dallars (round your response to nwo decinal places) The mean squared error (MSE) for the forecast developed using trend-adusted exponential smoothing ishousand squared dollars (round your response to two decimal place e le one, te Enter your answer in each of the answer boxes

Explanation / Answer

Double Exponential Smoothing for income

Data income
Length 6


Smoothing Constants

(level) 0.1
(trend) 0.3


Accuracy Measures

MAPE 3.21596
MAD 2.26431
MSD 8.90905


Forecasts

Period Forecast Lower Upper
2 72.2599 63.9883 80.5314
3 72.5583 63.8937 81.2229
4 72.8567 63.7611 81.9523
5 73.1551 63.5956 82.7147
6 73.4536 63.4019 83.5053
7 73.7520 63.1838 84.3202
8 74.0504 62.9447 85.1562