Following or two weekly forecast made by two different methods for the number of gallons of gasoline, and thousands, demanded at a local gasoline station. Also shown her actual demand levels, and thousands of gallons:

a) the MAD for method 1-

b) the mean squared error for method 1- (thousand gallons ^2)

c) the MAD for method 2- thousand gallons

d) the mean squared error for method 2- thousand gallons

Week 1 Week 1 Forecast Method 1 0.90 1.08 0.97 1.22 Actual Demand 0.68 1.00 0.96 1.00 Forecast Method 2 0.80 1.21 0.88 1.15 Actual Demand 0.68 1.00 0.96 1.00 WN 4