Exercise 4 Scattergraph Reef Office Supplies is interested in estimating the relationship between customer service costs and sales. The following data are available: Customer Month Service Sales Cost |May $9,900 $255,000 June $10,100 $210,000 July $10,690 $230,000 August $12,750 $255,000 September $13,830 $275,000 Required a. Prepare a scattergraph/scatterplot of customer service cost (vertical axis) and sales (horizontal axis). Place your graph here in between parts a. and b. Please read over the Scattergraph/Scatterplot additional help. b. Comment on whether there appears to be a linear relation between cost and sales and whether any of the observations appear to be outliers. Indicate which month if any may be an outlier and explain why. Your responses need to be in complete sentences with proper grammar and spelling