5. For the Hawkins Company, the monthly percentages of all shipments received on time over the past 12 months are: 99, 104, 101, 98, 100, 104, 101, 102, 98, 100, 101, and 102 (Use Excel for this problem). a) Construct a time series plot. What type of pattern exists in the data? b) Compare the three- month moving average approach and exponential smoothing approach for a = .3. Which method provides a better forecasting model? Prepare the Time Series Plots. c) What is the forecast for next month in each case