Consider the following annual sales data for 2003-2010, use the linear regression method and determine the regression equation that yields an estimated sales forecast.
Year | Sales
2003 | 2
2004 | 4
2005 | 10
2006 | 8
2007 | 14
2008 | 18
2009 | 17
2010 | 20
a) Y = -5267.4 + 2.6309X
b)Y = -5267.4 + 3.4102X
c) Y = 5267.4 + 2.6309X
d)Y = 5267.4 + 3.4102X