Multiple Choice - I will Thumbs up the right answer, thanks

QUESTION 13 Use the following data to answer the question from 13-15 Period Actual Demand Trend Forecast 100 110 120 160 170 200 Q13. Use 3 period weighted moving average to predict the demand of period 4 by setting the weight of period 3, 2. and 1 to 0.4, 0.3, and 0.3 with respectively. The forecasted demand of period 4 is a. 154 OOOO QUESTION 14 Use exponential smoothing with smoothing constant of 0.3 to predict the demand of period 3. The forecasted demand of period 3 is OOOO 2. 135.9 147.8 108.1 d. 155.6 QUESTION 15 Which of the following statement is not true? 2. Forecast should always come with measurement of error Trend, cyclical, seasonal, and random are four components in time series When the underline business environment is more dynamic, choose a smaller smoothing constant d. Long term forecast is used for strategic decision