$1.$ Using the last period demand method, the $($in$-$sampl$1.$ Using the last period demand method, the $($in$-$sample$)$ forecast for period $26$ will be

$2.$ The simple average $($in$-$sample$)$ forecast for period $44$ will be

$3.$ The four$-$period moving average $($out$-$of$-$sample$)$ forecast for period $49$ will be

$4.$ The exponential smoothing $($in$-$sample$)$ forecast for period $30$ will be

$5.$ The exponential smoothing $($out$-$of$-$sample$)$ forecast for period $49$ will be

$6.$ The four$-$period moving average $($in$-$sample$)$ forecast for period $18$ will be