2. specify the mean absolute deviation and mean absolute percent error. use trend projection with regressional forecast.

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3. obtain the exponetial smoothing forecast. The forecast for week 13 is ___.

4. specify the mean absolute deviation and mean absolute percent error.

A convenience store recently started to carry a new brand of soft drink. Management is interested in estimating future sales volume to determine whether it should continue to carry the new brand or replace it with another brand. The following tablo provides the number of cans sold per week. Use both the trend projection with regression and the exponential smoothing (let =0.4 with an initial forecast for wook 1 of 578) mothods to forecast demand for wook 13. Compare those methods by using the mean absoluto deviation and mean absoluto porcontorror porformance criteria. Does your analysis suggest that salos aro trending and if so, by how much? 4 Period Sales 23 629 647 5 674 735 578 6 608 7 742 8 723 9 685 10 723 11 665 12 738 () Obtain the trend projection with regression forecast The forecast for week 13 is (Enter your response rounded to the nearest whole number.)