Question: 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: =

  1. 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: = 0.2 and = 0.15.

    Year Units sold in thousands
    1981 888
    1982 900
    1983 1000
    1984 1200
    1985 1100
    1986 1500
    1987 1250
    1988 1150
    1989 1100
    1990 1200

    Using the double exponential smoothing, calculate the value of the mean absolute deviation for the given data.

    154.58

    91.27

    105.15

    215.47

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