Bradford Electric Illuminating Company is studying the relationship between kilowatthours (thousands) used and the number of rooms in a private single-family residence. A random sample of 10 homes yielded the following. Determine the regression equation. Show using R like they do in class (10 pts, calculate , , and then , 0 , 1 ) and then write it. Determine the no. of kilowatt-hours, in thousands, for six-room house. Use R. Determine the .95 confidence interval, in thousands of kilowatt-hours, for the mean of all six-room homes. Determine the .95 prediction interval, in thousands of kilowatt-hours, for a particular six-room home.

Number of rooms Kilowatt-Hours(thousands) 12 9 14 10 6 10 8 8 6 10 10 10 5 4