1. Refer to plot c and the seasonal exponential data for Sally-Stenography Source. a. What type of model appropriate for the data? Explain. b. Use that model, and discuss its efficacy. (How well does...

1. Refer to plot c and the seasonal exponential data for Sally-Stenography Source.
a. What type of model appropriate for the data?  Explain.
b. Use that model, and discuss its efficacy.  (How well does it perform?)
c. Offer any suggestions to improve the model performance