Consider the demand data for the periods listed below. 6 4 7 1 8 Month Demand 2 22 3 26 5 14 33 28 30 18 52 Using the weighted average method determine the questions below. A 5-period weighted average model is used. The weights for the periods of data are 0.1, 0.1, 0.2, 0.2, and 'x' 1. What is 'x'? [Select ] > 2. The one step ahead forecast for period 6 [Select ] > 3. The one step ahead forecast for period } [Select ]