Refer to the laboratory overhead cost and activity data for Elmhurst Health Center in E6-29A. Use the high-low method to determine the laboratory's cost equation for total laboratory overhead. Use your results to predict total laboratory overhead if 3,100 lab tests are performed next month.

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Number of Lab Total Laboratory Tests Overhead Costs Month January. Performed 3,000 2,850 3,400 3,700 3,900 1,900 $21,900 $20,600 February March... $28,900 April ......... $31,000 $28,000 May.. June $20,200 July. . $14,000 2,050