Here are a few tests that help to calculate the f values. The f statistics is the value that follows the f-distribution table. Z and t critical values are almost identical.į critical value is a value at which the threshold probability α of type-I error (reject a true null hypothesis mistakenly). The critical value of z can tell what probability any particular variable will have. Z critical value is a point that cuts off an area under the standard normal distribution. The critical value of t helps to decide if a null hypothesis should be supported or rejected.
T value is used in a hypothesis test to compare against a calculated t score.
T critical value is a point that cuts off the student t distribution.
