Questions:
Statistics - Regression and Linear Equations
1. Consider the following annual sales data for 1996-2003, use the linear regression method and determine the estimated sales equation.
Year Sales
1996 2
1997 4
1998 10
1999 8
2000 14
2001 18
2002 17
2003 20
2. Solve the following system of simultaneous equations.
6x1 + 4x2 = 40
2x1 + 3x2 = 20