Please solve part b. Thank you

Homework: Chapter 4 Homework Save Score: 0 of 5 pts 17 of 17 (15 complete) HW Score: 58.33%, 19.83 of 34 pts Problem 4.59 Question Help 1 2 3 5 6 8 9 Week Demand 4 37 1 37 10 29 21 21 28 26 28 24 26 a) The forecast for weeks 2 through 10 using exponential smoothing with a = 0.55 and a week 1 initial forecast of 21.0 are (round your responses to two decimal places): Week 1 2 Demand 21 21 Forecast 21.0 21.0 21.0 21.0 2 3 4 5 6 7 8 9 10 28 37 26 28 37 24 26 29 21.0 24.85 31.53 28.49 28.22 33.05 28.07 26.93 8:22 33.05 2 b) For the forecast developed using exponential smoothing (a = 0.55 and initial forecast 21.0), the MAD = sales (round your response to two decimal places). Enter your answer in the answer box and then click Check Answer. 1 Pemaining Clear All Check