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For full marks use the coded method and round your answer

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Reference no: EM13580298

The sales of a local grocery chain, since 2008 are:

Year Y    Sales ($ millions)

2008          12
2009           9
2010           7
2011          13
2012          13

For full marks use the coded method and round your answer to 1 decimal place.

a) Find the slope for the trend-line.

b) What is the intercept of the trend-line.

c) Determine the least squares trend-line.

Reference no: EM13580298

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