An analyst must decide between two different forecasting teclmiques for weekly sales of inline skates: a linear trend equation and the naive approach. The linear trend equation is yt = 124 + 2t, and it was developed using data from periods 1 through 10. Based on data for periods 11 through 19 as shown below, which of these two methods has greater accuracy? (You can use any one of the three measures of forecast errors).

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Units Sold 147 148 151 145 155 t Units Sold 16 17 18 19 152 155 12 1 3 14 15 160