The manager of the main laboratory facility at CitiFit Center is interested in being able to predict the overhead costs each month for the lab. The manager believes that total overhead varies with the number of lab tests performed but that some costs remain the same each month regardless of the number of lab tests performed. The lab manager collected the following data for the first seven months of the year. (Click the icon to view the data.) The laboratory manager performed a regression analysis to predict total laboratory overhead costs. The output generated by Excel is as follows: (Click the icon to view the completed regression analysis.) Read the requirements. Requirement 1. Determine the lab's cost equation (use the output from the Excel regression). (Round the amounts to two decimal places.) y = X + i Data Table Number of Lab Tests Performed Total Laboratory Overhead Costs Month January 2,500 $26,800 2,400 February March .... April 3,200 $25,700 $25,900 $28,900 3,650 May 3,800 $28,500 June 1,800 $20,900 July 1,900 $19,600 Print Done B D E F G 1 SUMMARY OUTPUT 2. Regression Statistics 3 Multiple R 0.880534 4 R Square 0.77534 5 Adjusted R Square 0.730408 6 Standard Error 1868.82221 7 Observations 7 8 ANOVA Significance F 9 df SS MS F 10 Regression 1 60266089.17 60266089.17 17.255877 0.008875 11 Residual 5 17462482.26 3492496.451 12 Total 6 77728571.43 13 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% 14 Intercept 14409.92 2688.513 5.360 0.003 7498.876 21320.960 15 X Variable 1 3.92 0.943 4.154 0.009 1.494 6.343