Ten weeks of data on the commodity Futures Index are 7.35 7.40 7.55 7.56 7.60 7.

Ten weeks of data on the commodity Futures Index are 7.35 7.40 7.55 7.56 7.60 7.52 7.52 7.70 7.62 and 7.55.a) Construct a times series plot. What type of pattern exists in the data?b) Use trial and error to find a value of the exponential smoothing coefficient that results in a relatively small MSE