A convenience store recently started to carry a new brand of health drink. Management is interested in estimating the future sales volume to determine whether it should continue to be stocked. At the end of April, the average monthly sales volume of the new drink was 700 bottles and the trend was +50 bottles per month. The actual sales volume for May, June and July are 760, 800 and 820 respectively. Use trend-adjusted exponential smoothing with andto forecast sales for June, July and August. Hint: Sales for April are 700 bottles. You should start with the smoothed (SES) forecast for April = 700 bottles and trend (April) = 50.
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