clear steps please.

Following are two weekly forecasts made by two different methods for the number of gallons of gasoline, in thousands, demanded at a local gasoline station. Also shown are actual demand levels, in thousands of gallons: Forecast Method 1 Actual Demand Forecast Method 2 Actual Demand Week Week 1 0.90 0.72 1 0.80 0.72 2 1.06 1.00 2 1.21 1.00 0.92 1.07 3 3 0.92 1.07 4 1.20 0.97 4 1.11 0.97 The MAD for Method 1= 0.16 thousand gallons (round your response to three decimal places). The mean squared error (MSE) for Method 1= thousand gallons (round your response to three decimal places)