The sales of the Mainio Oyj during the last seven years are descr.ibed in the table.
Based on the information in the table, form a linear model for the demand and
calculate the demand forecast for the next three years (demand for the years 8, 9 and
10).
Years -- 1--2--3--4--5--6--7
Sales(euro) ---12-16-27-22-27-32-33
Estimate the error using the following methods:
Cumulative forecast error
Average forecast error
Mean squared error
Standard deviation
Mean absolute deviation
Mean absolute percent error
Does the future of the demand growth look bright ?

Question

The sales of the Mainio Oyj during the last seven years are descr.ibed in the table.
Based on the information in the table, form a linear model for the demand and
calculate the demand forecast for the next three years (demand for the years 8, 9 and
10).
Years              -- 1--2--3--4--5--6--7
Sales(euro)  ---12-16-27-22-27-32-33
Estimate the error using the following methods:
Cumulative forecast error
Average forecast error
Mean squared error
Standard deviation
Mean absolute deviation
Mean absolute percent error
Does the future of the demand growth look bright ?