Forecast using Trend line, MAD and MSE.
Utilize the sales data given below determine
(a) The least square trend line.
(b) The predicted value for 2002 sales.
(c) The MAD.
(d) The unadjusted forecasting MSE.
Year

Sales(Units)

Year

Sales(Units)

1995

130

1999

169

1996

140

2000

182

1997

152

2001

194

1998

160

2002

?
