Two different forecasting techniques $($F$1$ and F$2)$ were used to forecast demand for cases of bottled water. Actual demand and the two sets of forecasts are as follows:

PREDICTED DEMAND

Period Demand F$1$ F$2$

$1686463$

$2756860$

$3707570$

$4746567$

$5697376$

$6727074$

$7807475$

$8787585$

a$.$ Compute MAD for each set of forecasts. Given your results, which forecast appears to be more accurate? $($Round your answers to $2$ decimal place.$)$

MAD F$1$

MAD F$2$

appears to be more accurate.

b$.$ Compute the MSE for each set of forecasts. Given your results, which forecast appears to be more accurate? $($Round your answers to $2$ decimal places.$)$

MSE F$1$

MSE F$2$