b$.$ Compute all possible forecasts using a six$-$period simple moving average model. Note: Round all your answers to $1$ decimal places except "Absolute percent error" answers which should be rounded to $2$ decimal places.

$\backslash$table$[[$Period$,$Demand,$6-$Period SMA,Absolute Error,$\backslash$table$[[$Absolute Percent$],[$Error$]]],[1,130,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[2,122,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[3,123,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[4,112,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[5,141,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[6,105,0\mathrm{.}0,0\mathrm{.}0,0\mathrm{.}00,],[7,116,122\mathrm{.}2,6\mathrm{.}2,,],[8,118,119\mathrm{.}8,1\mathrm{.}8,\%,],[9,142,119\mathrm{.}2,22\mathrm{.}8,,\%$