How to solve

Problem $3$

a$.$ The following are the data from the UNB ITS on computer services employment$($in thousands$)$:

a$.$ Compute a $3-$period and $5-$period moving averages forecast for the next year.

b$.$ Find a $3-$period weighted moving average forecast for next year using the weighting factors of

$\frac{1}{3}$ each.

c$.$ Compute a $5-$period weighted moving average forecast for next year, if the chronological weight$-$

ing factors are $\frac{1}{9},\frac{2}{9},\frac{3}{9},\frac{2}{9}$ and $\frac{1}{9}.$

d$.$ Find the time series linear regression equation and the forecast for next year's computer services

employment.

e$.$ Compute the coefficient of correlation and the coefficient of determination.

b$.$ Given the table below:

Use the exponential smoothing technique to forecast next month's demand for $=0\mathrm{.}1$ and $$

$=0\mathrm{.}3.($Assume the first month's forecast equals $45).$