13.)

A company has used three different methods to forecast sales for the past five months. (a) Use MAD and MSE to evaluate the performance of the three methods. (Round your answers to 1 decimal place, e.g. 1.2.) Method Method Period Actual A B Method C 1 12 10 7 8 2 7 11 11 12 3 13 13 10 7 7 14 5 13 5 10 15 14 7 MAD MSE Method A Method B Method C (b) Which of these is actually the naive method? Method A e Textbook and Media Method B Method CA producer of picture frames uses a tracking signal with limits of i4to decide whether a forecast should be reviewed. Given historical information for the past four weeks, compute the tracking signal and decide whether the forecast should be reviewed. The MAD for this item was computed as 2. (For tracking signal: round your answers to 1 decimal place, as. 3.5.) Weeks 221:? Forecast Deviation Cumulative Deviation Tracking Signal 6 3.0 1 11 12 2 13 14 3 12 13 4 10 14 The forecast should be reviewed in week eTextbook and Media Save for Later v l 'l'LOLQM Attempts: 0 of 3 used