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 time series plot. What type of pattern exists in the data?b. Compute...

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 time series plot. What type of pattern exists in the data?b. Compute the exponential smoothing forecasts for a  .2.c. Compute the exponential smoothing forecasts for a  .3.d. Which exponential smoothing constant provides more accurate forecasts based onMSE? Forecast week 11.