Using the na$$ve method and the following historical data, make a forecast for period $8$:

Period $($t$)$ Actual Demand $($At$)$

$1200$

$2250$

$3175$

$4186$

$5225$

Using the na$$ve method and the following historical data, make a forecast for period $8$:

Period $($t$)$ Actual Demand $($At$)$

$1200$

$2250$

$3175$

$4186$

$5225$

$193\mathrm{.}0$

Not enough information

$225\mathrm{.}0$

$205\mathrm{.}5$

$200\mathrm{.}0$