$\backslash$table$[[$Year$,$Month,Jobs$],[2012,1,1868710],[2012,2,1923890],[2012,3,1946060],[2012,4,1936730],[2012,5,1939250],[2012,6,1917860],[2012,7,1919690],[2012,8,1921050],[2012,9,1921750],[2012,10,1939550],[2012,11,1967250],[2012,12,2007480],[2013,1,1872470],[2013,2,1925270],[2013,3,1938670],[2013,4,1910800],[2013,5,1889830],[2013,6,1873610],[2013,7,1873190],[2013,8,1853740],[2013,9,1863470],[2013,10,1867600],[2013,11,1894620],[2013,12,1942410]]$

Open the iobs$8.$Download iobs$8$JMP file or jobs$8.$xlsx Download iobs$8.$xtsyExcel file. It contains two years of monthly data on total number of filled jobs. You are to compare three models and select the best fit one:

MadelX; Linear trend line forecasting

Madel X: Seasonal forecasting $($NOTE: season has $12$ levels here, one month per season$)$

Madelz: Seasonal forecasting with trend

Complete the following statements:

The $[x,$ Eantor$]$ parameter for Motal $x$ is $[$Select$]["$The Year column:", "The Month column.", $"$An additional column that contains a running count of $24$ time periods.," $"$An additional column that contains a running count of $12$ time periods."$].$

The predicted number of filled jobs for the first month of next year according to $"1887856\mathrm{.}88").$

The $[$Add$]$parameter for MadoilXis $[$Select$]["3$ dummy variables created to represent one of the $4$ seasons:? $"12$ dammy variables created to represeat one of the $12$ months., $"4$ dummy variables created to represent one of the $4$ seasons.", $"11$ dummy variables created to represent one of the $12$ months."$1.$

The predicted number of filled jobs for the firat month of next year nocording to $"1887856\mathrm{.}88")$

The number of "columns" setected to be placed in the $[$Add$]$ parameter for Cladatz is $[$Select$]["13"11","24","12"].$

The predioted number af filled jobs for the first month of next year according to Yodelzis is fSelect$]["1807641\mathrm{.}25","1871627\mathrm{.}08","1882592\mathrm{.}08","1866412\mathrm{.}08"$

Model X is the best fit model because it has the lowest Adiusted BSouech $($T$/$EI I Select$]["$F$","$T$"].$