Use the data given below to answer the following question(s). The table provided below gives the sales details of the number of android smart phones at an electronic retail store for the past 6 weeks. The time series appears to be relatively stable, without trend, seasonal, or cyclical effects. Week Units sold 1 88 2 44 3 54 4 65 5 72 6 85 Calculate the value of the mean absolute percentage error for the given data for alpha equal to 0.5. 32.80 16.60 21.47 29.97