5) Consider the following time series data. Month Value 1 24 2 18 3 27 4 17 5 33 6 20 7 14 a. Plot data and comment on the pattern. (2 marks) b. Compute MAE using the average of last two values as the forecast for the next period. What is the forecast for month 8? (2 marks) c. Compute MAE using the average of all the data available as the forecast for the next period. What is the forecast for month 8? (2 marks)