Gemstones are used commercially in jewelry because of their beauty, as well as in drill bits, because of their hardness and resilience.
Answer:
4813.10
Explanation:
the demand for bottled water for the last 15 months of business is as follows;
Period Demand
1 4516
2 4769
3 4814
4 5958
5 5284
6 5267
7 5083
8 4689
9 5321
10 5475
11 5489
12 5942
13 5616
14 4785
15 4675
the forecast for period 16 using the three-period weighted is
Weighted MA(3) = Ft₊₁ = wt₁(Dt) +wt₂(Dt₋₁) +wt₃(Dt₋₂
the weighting scheme to be used to forecast the period 16 are 0.5,0.4 and 0.1
Weighted MA(3) = F₁₆= 0.5(4675)+ 0.4(4785) +0.1(5616) =2337.50+1914+561.60 =4813.10
