Using the numbers in the chart below, calculate the following:

Your Answers

$1.$ Three$-$period moving average:

$2.$ Four$-$period weighted moving average $($weights: p$1=\mathrm{.}1,$ p$2=\mathrm{.}2,$ p$3=\mathrm{.}3,$ p$4=\mathrm{.}4)$:

$3.$ Smoothed forecast for Period $6($use an $=\mathrm{.}3)$:

$4.$ Mean Squared Error for Periods $1-5$:

$5.$ Mean Absolute Deviation for Periods $1-5$:

$6.$ Average percent error for Periods $1-5$: