Please use RStudio $($R code$)$ and load fpp$3$ package to answer. For this question, we will look at US construction employment $($starting from $1990)$ from the $`$us$\_$employment$`$ tsibble included in the $`$fpp$3`$ package. The following code will help you extract the data needed:

us$\_$construction$\_$employment $<-$ us$\_$employment $|>$

filter$($year$($Month$)>=1990,$ Title $==$ "Construction"$)|>$

select$(-$Series$\_$ID$)$

us$\_$construction$\_$employment

Using STL decomposition $($with a shortened trend window of $7$ and the robust option like in the example in the lecture$),$ forecast US construction employment for January of $2020.$