During the past three weeks sales of a brand of medicine, Ask an Expert

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During the past three weeks, sales of a brand of medicine have been recorded, an exponential smoothing forecast was run on the data, and the associated forecasts are as follows:

Week	Sales	Forecast
1	71	-
2	70	71
3	75	70.5

Using the data provided above in the table, calculate the forecast error for week 3.

4.5
1
5
-1

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91110563

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