Registration numbers for an accounting seminar over the past 10 weeks are shown below:
Week 1 2 3 4 5 6 7 8 9 10
Registrations 23 22 26 28 35 30 33 37 40 39
Forecast registration for the last six weeks (5-10) using a two-week and a four-week moving average. Which forecasts are more accurate using the concept of MAD?