Need assistance today.

Please explain step by step how to get to the

1)Predicted Call Volume (linear regression) value

2) absolute error value

3) The MEE

4) What is the difference between Mean Absolute Deviation of Exponential Smoothing and Average Estimation for Causal Forecasting? How would you make a decision if one is better than the other?

Year Month Actual Call Predicted Call Volume Absolute Error Volume (Linear Regression) 2014 Jan 24,015 24719.69967 705 2014 Feb 25,203 24738.46578 465 2014 Mar 23,589 24730.25561 1,141 2014 Apr 27,454 28369.12208 915 2014 May 28,120 28238.34573 118 2014 Jun 28,321 28160.34908 161 2014 Jul 29,021 28142.16941 879 2014 Aug 26,954 26609.2126 345 2014 Sep 26,456 26631.49736 175 2014 Oct 27,120 26661.99229 458 2014 Nov 26,954 26656.71433 297 2014 Dec 27,321 26789.83643 531 2015 Jan 26,456 26772.2432 316 2015 Feb 27,450 26766.37879 684 2015 Mar 31,435 32408.52776 974 2015 Apr 33,124 32390.93453 733 2015 May 32,432 32260.15818 172 2015 Jun 31,901 32280.09718 379