Please answer parts A, B, and C.

Table of ABC Floral Shop is the following. The ABC Floral Shop sold the following number of geraniums during the last two weeks: The ABC Floral Shop from problem 3 is considering fitting various forecasting models on the first seven days of demand and using the second seven days as a hold-out sample for comparing the prediction accuracy of the models. They have decided to use =.25, but aren't sure what starting value of forecast, F1, to use. a. Try values of F1=160,F2=170, and F3=180 to determine the best exponential model for the first seven days using the minimum total absolute deviation as the criterion. You may modify the spreadsheet from problem 8 for the calculations. b. Compare the best model from part a to a three-period moving average model on the second set of data. Which one has the smallest sum of absolute errors? c. What principles does this problem illustrate