i just need the answer to the question provided (F) I have attached the answers to the previous questions (a-e) for additional help :)

Harlan Gravity Grips produces spike sets for track shoes. CEO Brittany Harlan has gathered the following information about the company's sales volume and marketing cost for the past six months. Sales Volume 64,500 Total Marketing Costs $8,265 January February 48,400 $6,605 March 69,800 $8,420 April 74,600 $8,635 May 67.300 $8,180 June 76,900 $8,885 (f) Using the original marketing cost function (($0.08 x sets sold) + $2,733) and the marketing cost function removing the potential outlier, (($0.05 sets sold) + $5,040), which of these two cost functions would be appropriate to use in estimating future marketing costs? Why