Use the data given below to answer the following question(s). The details of the clock sales at a supermarket for the past 6 weeks are shown in the table below. The time series appears to be relatively stable, without trend, seasonal, or cyclical effects. The simple moving average value of k is set at 2. Week 1 2 3 Units sold 88 44 64 65 72 85 4 5 6 For the given data, calculate the value of the simple moving average mean absolute percentage error. 25.56 20.90 12.47 14.39 The worldwide sales of cars from 1981-1990 are shown in the table below. Given: a = 0.2 and B = 0.15. Year 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 Units sold in thousands 888 900 1000 1200 1100 1500 1250 1150 1100 1200 Calculate the value of the mean absolute percentage error using double exponential smoothing for the given data. O 15.27 O 10.80 O 8.10 O 12.39 Use the data given below to answer the following question(s). The worldwide sales of cars from 1981-1990 are shown in the table below. Given: a = 0.2 and B = 0.15 Year 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 Units sold in thousands 888 900 1000 1200 1100 1500 1250 1150 1100 1200 For the given data, what is the sales forecast for the year 1992 (in thousands)? 1317.91 1375.08 1385.74 1308.69