Reef Office Supplies is interested in estimating the relationship between customer service costs and sales. The following data are available:

Month Customer Cost
Service
Sales
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

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.