5.Using the Box-Jenkins approach build an ARIMA model for TSLA (Tesla) on training 2016-01-01 to 2019-01-01 monthly data and test the forecast on 2019-02-01 through 2020-05-01. Produce static and dynamic forecasts and plot them and actuals jointly as in class. (10 points) 5.Using the Box-Jenkins approach build an ARIMA model for TSLA (Tesla) on training 2016-01-01 to 2019-01-01 monthly data and test the forecast on 2019-02-01 through 2020-05-01. Produce static and dynamic forecasts and plot them and actuals jointly as in class. (10 points)