A) Comment on the appearance of the demand pattern.

B) Based on the part a, which forecast methods can be used for next month? Using those appropriate and suggested methods, predict the next month demand in an Excel file.

C) Compare the methods used in part B based on some measures and think/answer which method is the best one. Justify answer based on results of those measures.

A counseling service records the number of calls to their hotline for the last year. Month Demand Jan 111 Feb 127 Mar 146 Apr 159 May 165 Jun 165 Jul 178 Aug 182 Sep 191 Oct 208 Nov 223 Dec 228