PLEASE ADD what is the MAD for this model too

Passenger med flown on Northeast Airlines, a commuter fem serving the Boston hub, are shown for the past 12 weeks: 5 20 6 19 7 21 Week 1 2 3 4 9 10 11 12 Actual Passenger Miles (in thousands) 18 23 19 24 20 25 21 11 23 Autuming an initial forecast for wook 1 of 18,000 miles, use exponential smoothing to compute mies for weeks 2 through 12. Use a 0.25 fround your responses to two decimal places Week 12 3 5 10 11 12 Forecasted Passenger Miles 18.00 18:00 1025 10.10 20:30 20.29 19,97 20.28 2017 2138 (in thousands) 7 @ 9