Anywering the question based on the following information: Error Absolute Actual Forecast A-F Error 104 99 111 111 107 111 107 104 Which of the following is the Sum of Errors value that can be computed from this data? 3 O 1 O4 O 12 O2 Answering the question based on the following information: Error Absolute Actual Forecast A-F Error 104 99 A 111 111 107 111 107 104 TS - RSFE / MAD What is the Tracking Signal at the end of four perods? 0.33 O 0.67 1.33 O 1.67