A pharmacist has been monitoring sales of a certain over-the counter (i.e., no prescription is needed) pain reliever. Daily sales during tire last 15 days were:

a. If you learn that on some days the store ran out of this pain reliever, would that knowledge cause you any concern regarding the use of sales data for forecasting demand? Explain.
b. Ass time that there was no stock-outs. Plot the data. Is the linear trend model appropriate for this item? Explain.
c. Using trend-adjusted exponential smoothing with initial smoothed series and trend deter-mined from days 1 to 8 and a = β = .3, develop forecasts for days 9 through 16.

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4. Day Number sold: 36 3 424448 4 50 Day: Numbor sold: 4 5255 54 56 57 3 7 52 10 1 12 3 1415