The manager of the main laboratory facility at Elmhurst Health 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 regardiess of the number of lab tests performed. The manager of the main laboratory facility at Elmburst Health Center collected the following seven months of data. The number of tests performed and the total monthly overhead costs for the lab follow: Use the blue shaded areas on the ENTERANSWERS tab for inputs. Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong. 8 Requirements 1 Run a regression analysis using data for August through February. Determine the lab's cost equation (use the output from the regression analysis you performed using Excel). a. Rename the regression output tab name "REGRESSION", 2 Determine the R-square using the Excel output you obtain. 3 Predict the lab's total overhead costs for the month if 3,500 tests are performed. a. Reference values calculated in previous requirements as needed. 1. Run a regression analysis using data for August through February. Determine the lab's cost a. Rename the regression output tab name "REGRESSION". (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.) y= 2. Determine the R-square using the Excel output you obtain. (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.) R square = 3. Predict the lab's total overhead costs for the month if 3,500 tests are performed. a. Reference values calculated in previous requirements as needed. (Always use cell references and formulas where appropriate to receive full credit. If you copy/paste from the Instructions tab or if you type the numbers in, you will be marked wrong.) The total laboratory overhead at a volume of 3,500 lab tests is