A sales manager wishes to forecast sales for the next three years for a company that has been in business for the past 1

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A sales manager wishes to forecast sales for the next three years for a company that has been in business for the past 1

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A Sales Manager Wishes To Forecast Sales For The Next Three Years For A Company That Has Been In Business For The Past 1 1
A Sales Manager Wishes To Forecast Sales For The Next Three Years For A Company That Has Been In Business For The Past 1 1 (34.16 KiB) Viewed 8 times
A sales manager wishes to forecast sales for the next three years for a company that has been in business for the past 15 years. The sales during these years are shown on the next table. Year (x) 1 2 3 4 5 6 7 8 9 Sales (y) 9149 13048 19147 28873 39785 54968 72136 89478 112946 Calculate coefficients a and bin y = a sin(x) + b cos(x) to be a least squares fit to the data in the table. Compute the sales for the next three years.
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