Develop a three$-$month moving average for this time series. Compute MSE and a forecast for month $8.$

If required, round your answers to two decimal places. Do not round intermediate calculation.

MSE:

The forecast for month $8$:

$($c$)$ Use $\backslash$alpha $=0\mathrm{.}2$ to compute the exponential smoothing values for the time series. Compute MSE and a forecast for month $8.$

If required, round your answers to two decimal places. Do not round intermediate calculation.

MSE:

The forecast for month $8$:

$($d$)$ Compare the three$-$month moving average forec