Determine the least squares regression line using excel., Ask an Expert

Management Studies

For the data below:

Year	Automobile Sales	Year	Automobile Sales
1990	116	1997	119
1991	105	1998	34
1992	29	1999	34
1993	59	2000	48
1994	108	2001	53
1995	94	2002	65
1996	27	2003	111

(a) Determine the least squares regression line using Excel.

(b) Determine the predicted value for 2004.

(d) Determine the MSE for the trend line (in a) and the 3 month moving average (in c.) Which forecasting method is better? Explain.

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