The tracking signals computed using past demand history for three different products are as follows. Each product used the same forecasting technique.

TS 1 TS 2 TS 3 1 −2.70 1.54 0.10 2 −2.32 −0.64 0.43 3 −1.70 2.05 1.08 4 −1.1 2.58 1.74 5 −0.87 −0.95 1.94 6 −0.05 −1.23 2.24 7 0.10 0.75 2.96 8 0.40 −1.59 3.02 9 1.50 0.47 3.54 10 2.20 2.74 3.75 Discuss the tracking signals for each and what the implications are.