Question: Sales over the past 10 years are shown below. Using the method of least squares, calculate the values of a and b to complete

Sales over the past 10 years are shown below. Using the method

Sales over the past 10 years are shown below. Using the method of least squares, calculate the values of a and b to complete this regression equation. Year Sales 1 1,670 1,980 3 1,510 4 1,660 5 1,700 1,320 1,000 1,930 9 1,670 10 1,010 2 1678 (Indicate a negative answer using a *-*sign. Do not round intermediate calculations and round your answer to 3 decimal places.) Sales= What is your forecast for next year's sales? (Do not round intermediate calculations and round your answer to 2 decimal places.) Sales=

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