I need help with this one please.

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. (Hint: Optimize a value in 0.1 increments) 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. 20.90 16.60 29.97 21.72Using exponential smoothing approach we want to forecaste the value for the 3rd week. Given that, a = 0.8 and F2 = 88 and (1 - a) = 1 - 0.8 = 0.2 Formula: F++1 = a A+ + (1 - a)F. We want to find, F3 F3 = (0.8 * 44) + (0.2 * 88) F3 = 35.2 + 17.6 => F3 = 52.8