for the same data as in previous problem, perform the trend adjusted (double) exponential smoothing forecasts week 4 and 5 using alpha=0.4 and beta =0.5. the initial forecasts are given as follows TAF0=800 S0=800 and the initial trend is T0=50 1.what is the estimated trend for week 4(Tt)? a.11.50 b.4.40 c.4.91 d.15.98 2.what is the trend adjusted forecast for week 5(TAF5)? a.816.780 b.853.695 c.894.620 d.830.080weekactual saleTAFtStTt0800800501800850830502750880828403820868848.8144770???5--?---- Solution 1. 4.91 is the right answer 2. 830.80.