Should I be trying to replicate the NEAS results?

[NEAS: This is an independent student project. The NEAS postings are suggestions to get you started. You can construct an ARIMA model, compare two or more models for a given era, compare two or three eras by type of model of by model parameters, examine seasonality, test out-of-sample forecasts, and many other items.]

Probably not what anyone wants to hear, but I just used Minitab for any regression past AR(2). 

I tried to get the MA(1) formula on my own, and could never match what Minitab had given me.  No post by NEAS forbids Minitab, so I included my Minitab regression outputs in the Word doc I sent in.