# Statistics: The Least Squares Equation

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Listed in the attached file is the net sales in $ million for Home Depot, Inc. and its subsidiaries from 1993 to 2002.

Task: Determine the least squares equation. On the basis of this information, what are the estimated sales for 2005?

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## SOLUTION This solution is **FREE** courtesy of BrainMass!

Taking 1992 as year 0, we have 1993 as year 1, 1994 as year 2 etc.

Using Excel, the regression equation is Net Sales = 5713.357576 * Year + (-716.6666667)

[See the Excel file which is attached]

In 2005, the Year = 13

Net Sales = 5713.357576 * 13 + (-716.6666667) = $73556.9818 million.

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