Question

Refer to the table below for the estimates of the additive decomposition model. The fourth column contains the quarterly sales of a specific product in the warehouse. Year Quarter $t$ $y_t$ 4MA $CMA_t$ $y_t - CMA_t$ $s_{t}$ $t_{rt}$ $y_t$ $c_t + t_{rt}$ $c_t$ $y_t$ 1 1 1 22 1 2 2 27 1 3 3 37 1 4 4 46 2 1 5 31 2 2 6 33 2 3 7 45 2 4 8 56 3 1 9 39 3 2 10 39 3 3 11 41 3 4 12 58 Fill in the table above by calculating the values for: (3.1) (a) The four-point moving averages (4MA) and (b) Centered moving averages ($CMA_t$). (3.2) Calculate the $s_{nt} + t_{rt}$ (seventh column). (3.3) Calculate the deseasonalised observations, $d_t$. (3.4) The fitted model is $t_{rt} = 30.9847 + 1.0280t$. Calculate the trend values (tenth column). (3.5) Calculate the point estimates, $\hat{y}_t$ (eleventh column).

          Refer to the table below for the estimates of the additive decomposition model. The fourth column contains the quarterly sales of a specific product in the warehouse.
Year Quarter $t$ $y_t$ 4MA $CMA_t$ $y_t - CMA_t$ $s_{t}$ $t_{rt}$ $y_t$ $c_t + t_{rt}$ $c_t$ $y_t$
1 1 1 22
1 2 2 27
1 3 3 37
1 4 4 46
2 1 5 31
2 2 6 33
2 3 7 45
2 4 8 56
3 1 9 39
3 2 10 39
3 3 11 41
3 4 12 58
Fill in the table above by calculating the values for:
(3.1) (a) The four-point moving averages (4MA) and
(b) Centered moving averages ($CMA_t$).
(3.2) Calculate the $s_{nt} + t_{rt}$ (seventh column).
(3.3) Calculate the deseasonalised observations, $d_t$.
(3.4) The fitted model is $t_{rt} = 30.9847 + 1.0280t$. Calculate the trend values (tenth column).
(3.5) Calculate the point estimates, $\hat{y}_t$ (eleventh column).

refer to the table below for the estimates of the additive decomposition model the fourth column contains the quarterly sales of a specific product in the warehouse year quarter t yt 4ma cm 71441

Added by James J.

Question

Please give Ace some feedback