Period 1 actual demand 310 forecast #1 178 Forecast #2 228, Period 2 actual demand 340 forecast #1 310 Forecast #2 270, Period 3 actual demand 150 forecast #1 340 Forecast #2 307, Period 4 actual demand 170 forecast #1 150 Forecast #2 230. Based on this information which of the following statements is true? Forecast #2 has a higher MAD than forecast #1, The values of MAD for forecast #1 and forecast #2 are exactly equal, Forecast #1 has a significant problem with bias in period 4, Forecast #2 has a significant problem with bias in period 4, Forecast #1 has a higher MAD than forecast #2