Question: a. Using a computer program, estimate the linear increasing trend equation, S a + bt, using ordinary least-squares regression. b. According to your regression statistics,

a. Using a computer program, estimate the linear increasing trend equation, S a + bt, using ordinary least-squares regression.

b. According to your regression statistics, how well does your estimated equation explain past variations in sales?

c. Use your equation to forecast sales in the coming year. What margin of error would you attach to your forecast?

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