Demand for the first six periods is as shown below. Forecast using a three-period simple moving average and calculate MAD based on your forecast values. Round your answer to a whole number. Demand for the first six periods are shown below. Forecast demands using a threeperiod weighted moving average and calculate MSE. The weights are 0.1,0.3, and 0.6 where 0.6 is applied to the most recent period. Do not round intermediate calculations. Round your final answer to a whole number