Q2. Download and import the grammys dataset from Canvas. This dataset provides the number of viewers (in millions) of the Grammy Awards each year from 1979 to 2019. a. Write the R command to generate forecasts using the nave method. (1 point) b. Write the command(s) to generate the RMSE of this forecast, and report the value. (2 points) c. Write the command to generate forecasts using simple exponential smoothing. (1 point) d. Write the R command that returns the optimal value of alpha as determined by the command you wrote in part c, and report the value. (1 point) e. Write the R command that returns the forecast for the next periods, and report the value. (1 point) f. Write the R command to return the RMSE using this forecasting method, and report the value (1 point) Table + Sheet1 grammys year viewers 1979 31.31 1980 32.39 1981 28.57 1982 24.02 1983 30.86 1984 51.67 1985 37.12 1986 30.39 1987 27.91 1988 32.76 1989 23.57 1990 28.83 1991 28.89 1992 23.1 1993 29.87 1994 23.69 1995 17.27 1996 21.5 1997 19.21 1998 25.04 1999 24.88 2000 27.79 2001 26.65 2002 18.96 2003 24.82 2004 26.29 2005 18.8 2006 17 2007 20.05 2008 17.18 2009 19.04 2010 25.8 2011 26.55 2012 39.91 2013 28.37 2014 28.51 2015 25.3 2016 24.95 2017 26.05 2018 19.8 2019 19.88 Q2. Download and import the grammys dataset from Canvas. This dataset provides the number of viewers (in millions) of the Grammy Awards each year from 1979 to 2019. a. Write the R command to generate forecasts using the nave method. (1 point) b. Write the command(s) to generate the RMSE of this forecast, and report the value. (2 points) c. Write the command to generate forecasts using simple exponential smoothing. (1 point) d. Write the R command that returns the optimal value of alpha as determined by the command you wrote in part c, and report the value. (1 point) e. Write the R command that returns the forecast for the next periods, and report the value. (1 point) f. Write the R command to return the RMSE using this forecasting method, and report the value (1 point) Table + Sheet1 grammys year viewers 1979 31.31 1980 32.39 1981 28.57 1982 24.02 1983 30.86 1984 51.67 1985 37.12 1986 30.39 1987 27.91 1988 32.76 1989 23.57 1990 28.83 1991 28.89 1992 23.1 1993 29.87 1994 23.69 1995 17.27 1996 21.5 1997 19.21 1998 25.04 1999 24.88 2000 27.79 2001 26.65 2002 18.96 2003 24.82 2004 26.29 2005 18.8 2006 17 2007 20.05 2008 17.18 2009 19.04 2010 25.8 2011 26.55 2012 39.91 2013 28.37 2014 28.51 2015 25.3 2016 24.95 2017 26.05 2018 19.8 2019 19.88