Question: a) Plot the above data on a graph. Do you observe any trend, cycles, or random variations? b) Starting in year 4 and going to

a) Plot the above data on a graph. Do you observe any trend, cycles, or random variations?
b) Starting in year 4 and going to year 12, forecast demand using a 3-year moving average. Plot your forecast on the same graph as the original data.
YEAR 1 2 3 4 5 6 7 8 9 10 11 DEMAND 7 9 5 9 13 8 00 12 13 9 11 7
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