Answer is complete but not entirely correct. An analyst must decide between two different forecasting techniques for weekly sales of roller blades: a linear trend equation and the

naive approach. The linear trend equation is $F_t=122+2\mathrm{.}0t,$ 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 the greater accuracy if MAD and MSE are used?

$($Round your intermediate calculations and final answers to $2$ decimal places.$)$

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Answer is not complete.

provides forecasts with less average error and less average squared error.