Question $30$

$6$ pts

Forecasting at the Leviathan Towne Car has produced the following results over the past five months.

$\backslash$table$[[$Month$,$Forecast,$\backslash$table$[[$Actual$],[$Demand$]]],[\backslash$table$[[$Sep$.],[2023]],10,14],[\backslash$table$[[$Oct$.],[2023]],18,24],[\backslash$table$[[$Nov$.],[2023]],21,12],[\backslash$table$[[$Dec$.],[2023]],8,7],[\backslash$table$[[$Jan$.],[2024]],15,11]]$

Please calculate the three error measures as requested below. Then, report ONLY the results in a numeric value $($i$.$e$.,$ each forecast error value$)$ directly in the blank space given below.