Please answer the question below based on pic I have attached(Table 5)

The executive director, Marv Harnishfeger, concluded that the most important variable that Consumer Credit Counseling (CCC) needed to forecast was the number of new clients that would be seen for the rest of 1993. Marv provided Dorothy Mercer with monthly data for the number of new clients seen by CCC for the period from January 1985 through March 1993 (Table 5).

Dorothy was very happy with your forecasting work so far. However, you are not completely satisfied. You tell her that she should try one of the most powerful techniques used in forecasting, the Box-Jenkins methodology and ARIMA models. Dorothy has never heard of Box-Jenkins but is willing to have you give it a try.

Question: Develop an ARIMA model using the Box-Jenkins methodology, and forecast the monthly number of new clients for the rest of 1993.

\f1988 Jan. 101 Feb. 153 Mar. 138 Apr. 107 May 100 Jun. 114 Jul. 78 Aug. 106 Sep. 94 Oct. 93 Nov. 103 Dec. 104 1989 Jan. 150 Feb. 102 Mar. 151 Apr. 100 May 100 Jun. 98 Jul. 97 Aug. 120 Sep. 98 Oct. 135 Nov. 141 Dec. 67 1990 Jan. 127 Feb. 146 Mar. 175 Apr. 110 May 153 Jun. 117 Jul. 121 Aug. 121 Sep. 131 Oct. 147 Nov. 121 Dec. 1101992 Jan. 166 Feb. 138 Mar. 175 Apr. 108 May 112 Jun. 147 Jul. 168 Aug. 149 Sep. 145 Oct. 149 Nov. 169 Dec. 138 1993 Jan. 152 Feb. 151 Mar. 199