maybe i'm being more dense than usual, but i can't see how you're going to meaningfully calculate whether road or home performances deviate more from the mean. the mean would be calculated from those same data points. kstate played a fair number of neutral (semi-neutral) games, but even so, i don't think you could calculate a representative mean from those data points alone.
at any rate, i saw an old post stating that the kenpom home court adjustment is 1.4% to home team's o, ht's d, road team's o, rt's d. it may have changed, but it's probably still something close to that.