please use excel

2) Consider the following time series data Month Value 1 24 2 23 3 19 4 25 5 20 6 23 7 25 NN a Using excel, construct a time series plot. What type of pattem exists in the data? b. Develop a three-week moving average for this time series. Compute MSE and a forecast for week 8. c. Use a = 0.4 to compute the exponential smoothing values for the time series. Compute MSE and a forecast for week 8. d. Compare the three-week moving average forecast with the exponential smoothing forecast using a = 0.4. Which one appears to provide the better forecast based on MSE