SAS for z, t, chi-square and F distributions 1 The relation is Prob(Y < x) = p 10:10 Sunday, July 20, 2008 Obs name1 name2 df1 df2 x p 1 normal . . 1.9600 0.97500 2 inverse normal . . 1.6449 0.95000 3 t 5.00 . 1.4760 0.90001 4 inverse t 10.00 . 1.8125 0.95000 5 chisqr 7.00 . 12.0000 0.89944 6 inverse chisqr 11.00 . 21.9200 0.97500 7 F 5.00 10 3.3300 0.95017 8 inverse F 3.00 5 5.4095 0.95000 9 inverse chisqr 1.56 . 6.4142 0.97500 10 inverse chisqr 1.56 . 0.0161 0.02500 11 inverse chisqr 2.00 . 7.3778 0.97500 12 inverse chisqr 2.00 . 0.0506 0.02500