Cubicle Solutions sells productivity software such as word processors, spreadsheets, and personal information managers. Cubicle prides itself on customer support and maintains a large call center where customers can call in with technical questions about the installation and use of Cubicle products. Monthly data on the number of support calls and call center costs for the last year have been collected and are shown as follows (all activities and costs are in thousands): Required: a. Estimate the monthly fixed costs and the unit variable cost per support call using the high-low estimation method. (Round variable cost per unit to 2 decimal places. Enter your answer in thousands of dollars.) b. Draw a scattergraph relating call center costs to the number of support calls. Instructions: 1. Click on a point to the right of the graph. 2. Click within the graph to place the point. 3. Enter the exact coordinates in the dialog box that appears to the right of the graph. 4. Click save. 5. To change coordinates already saved, click on a point already placed in the graph, and enter revised coordinates in the dialog box that opens. High-Low Method, Scattergraph (i) Cubicle Solutions