Upper critical values of Student's t distribution with degrees of freedom

t table  The Student t t -distribution is the distribution of the t t When performing a Student t t -test, to find the critical value, we have to read the tables  TABLE B t-Distribution Critical Values Tail Probability p df 25 20 15 10 05 025 02 01 005 0025 001 0005 1

For a lower, one-sided test, find the column corresponding to 1-α and reject the null hypothesis if the test statistic is less than the negative of the table t distribution critical values How to Use the Table: Find your degrees of freedom in the df column and use that row to find the next smaller number

This t-distribution table provides the critical t-values for both one-tailed and two-tailed t-tests, and confidence intervals  This MATLAB function converts the table or timetable, T, to a homogeneous array, A