Question: PLEASE SHOW IN-DETAIL STEPS DRAWING GRAPH IN EXCEL a) Plot the above data on a graph. Do you observe any trend, cycles, or random variations?

PLEASE SHOW IN-DETAIL STEPS DRAWING GRAPH IN EXCEL

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 12 13 9 11 7

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