For the following data, calculate the Forecast for period six.

Page $6$

$\backslash$table$[[$Period$,$Actual Demand,Forecasted Demand$],[1,140,126],[2,110,],[3,120,],[4,140,],[5,120,],[6,?,]]$

Help Meredith determine which forecasting technique is best for her firm, choosing between; Last Period Demand, Arithmetic Average, $3-$month moving average, and Exponential Smoothing with alpha $=0\mathrm{.}3.$