The data in the following table represent total exports for Malaysia (in millions). < MALAY_X >

a. Plot the time series.

b. Fit a 3-year moving average to the data and plot the results.

c. Using a smoothing coefficient of W 5 0.30, smooth the series exponentially and plot the results.

d. Repeat

(c) using W 5 0.65.

e. Compare the results of

(c) and (d).

f. Forecast the 2013 value using W 5 0.3, and compare this forecast with the real value at .