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The business analyst for Ace Business Machines,Inc.wants to forecast this year's demand for manual typewriters based on the following historical data: What is the forecast for this year using trend adjusted (double) smoothing with alpha(1) = 0.3 and alpha(2) = 0.2,if the forecast for last year was 31,the forecast for two years ago was 43,and the trend estimate for last year's forecast was -15?
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