list(N=20, X=c(13.94315,10.48345,11.79345,11.45975,12.44981,11.18349,12.69151,14.17680,10.06341,11.94404,10.32138,9.67992,9.588043,11.79927,13.89087,11.95653,13.05451,9.978511,8.795529,12.96821))