Consider the following Monthly time series data and Apply Holts model to the forecast ( Carry on up to 3 decimal points: e.g., 3.215)

Time	Demand
1	350
2	360
3	380
4	390
5	410
6	430

a) Determine and based on the given data. (Use Excel: 3 points)

b) Predict demand for January using Holts model based on =0.5,=0.5. (4 points: Dont use an

Excel computer, Show your work using an equation)

c) What is the level of January (L1) based on =0.5,=0.5 (4 points: Dont use an Excel, Show

your work using an equation)

d) Predicted demand for February using Holts model based on =0.5,=0.5. (4 points: Dont use an

Excel, Show your work using an equation)