Just the two I got wrong

Burger Lover Restaurant forecasts weekly sales of cheeseburgers. Cheeseburger Sales Week 1 351 349 367 4 314 5 366 Based on historical observations over the past five weeks, make a forecast for the next period using the following methods: simple average, three-period moving average, and exponential smoothing with a = 0.3, given a forecast of 334 cheeseburgers for the first week. (Round your answers to 2 decimal places,e.g. 250.25) Simple average: F6 = 349.4 3-Period moving average: F6 349 Exponential smoothing: F6 = 310.2 If actual sales for week 6 turn out to be 364, compare the three forecasts using MAD. Which method performed best? (Calculate your answers using the error only in period 6.) MAD (simple average) = 14.6 MAD (3-period moving average) = 15 MAD (exponential smoothing) = Simple average 2 3 20.8 provides the lowest MAD