Question: Would you use exponential smoothing with a smoothing constant of 0.3, a 3-year moving average, or a trend to predict the sales of Cool-Man air

Would you use exponential smoothing with a smoothing constant of 0.3, a 3-year moving average, or a trend to predict the sales of Cool-Man air conditioners?.

Data from

Sales of Cool-Man air conditioners have grown steadily during the past 5 years:

YEAR SALES 450 2 495 518 563 584 6.

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