Exercise E4-7 - Scattergraph
	Reef Office Supplies is interested in estimating the relationship between customer service costs and sales. The following data are available:
		Month	Customer Service Cost	Sales
		May	$9,740	$170,000
		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 of customer service cost (vertical axis) and sales (horizontal axis). 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.