Q$1$ Develop a $3-$month moving average and a $4-$month moving average forecast for the Wallace Garden Supply and compute the mean absolute error $($MAE$).$ Select the more accurate forecast.

$\backslash$table$[[,$Actual$],[$Month Shed Sales,$],[$Jan$.,10],[$Feb$.,12],[$Mar$.,13],[$Apr$.,16],[$May$,19],[$June$,23],[$July$,26],[$Aug$.,30],[$Sept$.,28],[$Oct$.,18],[$Nov$.,16],[$Dec$.,14]]$

Wallace Garden Supply