Practice the supplemental problems, which are below:

a$.$ Broken Arrow Farms has collected information regarding cane yield per farming plot. Compute the $3-$period moving average, $,5-$period moving average, and exponential smoothing, $,$ forecast for Periods $4-11,6-11$ and $2-11,$ respectively.

Period Observation

Period $15,624---$

Period $25,324$

Period $34,533$

Period $45,013$

Period $55,424$

Period $65,035$

Period $75,253$

Period $85,463$

Period $95,276$

Period $105,323$

Period $11-$

Using the observed and $3-$Period Moving Average, forecast values from Period $4$ through Period $10,$ compute the MAD, MSE and MAPE.

MAD:

MSE:

MAPE: