For the data below:

(a) Develop a scatter diagram (6 Marks) (b) Develop an exponential smoothing forecast using an alpha of 0.2 and a separate exponential smoothing forecast using an alpha of 0.9. (22 Marks) (c) Compute the MSE for both forecasts from part b. Which is more accurate? (10 Marks)

\begin{tabular}{|c|c|c|c|} \hline Month & Diaper Sales & Month & Diaper Sales \\ \hline January & 39 & July & 1 \\ \hline February & 36 & August & 15 \\ \hline March & 16 & September & 5 \\ \hline April & 26 & October & 24 \\ \hline May & 10 & November & 13 \\ \hline June & 12 & December & 31 \\ \hline \end{tabular}