## Description

**QUESTION:**

An analyst must decide between two different forecasting techniques for weekly sales of rollerblades: a linear trend equation and the naive approach. The linear trend equation is F_{t} = 124 + 2 t, and it was developed using data from periods 1 through 10. Based on data for periods 11 through 20 as shown in the table, which of these two methods has greater accuracy if MAD and MSE are used?

**t __________________ Units Sold**

11 ???????????. 147

12 ???????????. 148

13 ???????????. 151

14 ???????????. 145

15 ???????????. 155

16 ???????????. 152

17 ???????????. 155

18 ???????????. 157

19 ???????????. 160

20 ???????????. 165

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