=+3-24 KK Estimating a cost function, high–low method OBJECTIVES 4, 5 Kim Daley is examining customer service costs in the southern region of Capital Products. Capital Products has more than 200 separate electrical products that are sold with a six-month guarantee of full repair or replacement with a new product. When a product is returned by a customer, a service report is prepared. This service report includes details of the problem and the time and cost of resolving the problem. Weekly data for the most recent 8-week period are:

Week Customer Service Department costs Number of service reports 1 $13 700 190 2 20 900 275 3 13 000 115 4 18 800 395 5 14 000 265 6 21 500 455 7 16 900 340 8 21 000 305 Required 1 Plot the relationship between customer service costs and number of service reports. Is the relationship economically plausible?