Bradford Electric Illuminating Company is studying the relationship between kilowatt-hours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. Number of Rooms Kilowatt-Hours (thousands) Number of Rooms Kilowatt-Hours (thousands) 12 9 8 6 9 7 10 8 14 10 10 10 6 5 5 4 10 8 7 7 Click here for the Excel Data File Determine the regression equation. (Round your answers to 3 decimal places.) Determine the number of kilowatt-hours, in thousands, for a six-room house. (Round your answer to 3 decimal places.)