5-39 The following table provides the Dow Jones Industrial Average (DJIA) opening index value on the first working day of 1994–2013:

Develop a trend line and use it to predict the opening DJIA index value for years 2014, 2015, and 2016.

Find the MSE for this model.

Year DJIA Year DJIA 2013 13,104 2003 8,342 2012 12,392 2002 10,022 2011 11,577 2001 10,791 2010 10,431 2000 11,502 2009 8,772 1999 9,213 2008 13,262 1998 7,908 2007 12,460 1997 6,448 2006 10,718 1996 5,117 2005 10,784 1995 3,834 2004 10,453 1994 3,754