T Test Tables. However this exact value doesn t lie in this row so look for the values on either side of it. Prob t 50 t 75 t 80 t 85 t 90 t 95 t 975 t 99 t 995 t 999 t 9995 one tail 0 50 0 25 0 20 0 15 0 10 0 05 0 025 0 01 0 005 0 001 0 0005 two tails 1 00 0 50.
The t test is a parametric test of difference meaning that it makes the same assumptions about your data as other parametric tests. So stay with us and read this article carefully. T test table one tail two tail the t test table is used to evaluate proportions combined with z scores.
The acquired probability is the t curve area between the t distribution ordinates i e the given value and infinity.
This distribution table shows the upper critical values of t test. It was developed by english statistician william sealy gosset. You can find the table below. Prob t 50 t 75 t 80 t 85 t 90 t 95 t 975 t 99 t 995 t 999 t 9995 one tail 0 50 0 25 0 20 0 15 0 10 0 05 0 025 0 01 0 005 0 001 0 0005 two tails 1 00 0 50.