t distribution

T table and how to use it Easily

The T table shows values of critical T values that correspond to Degree of Freedom and Level of significance of the test. Degree of Freedom The Degree of freedom or DF is calculated with the simple formula: DF = n – 1where n = sample size Level of Significance The level of significance is most commonly known as ALPHA value of the statistical study. The alpha level is decided by… Read More »T table and how to use it Easily

Quick Introduction to T distribution #1

What is T distribution? The Student’s T distribution which is commonly known as T distribution is used when the sample size of a statistical study is small and the population variance is not known. The T distribution curve looks very similar to a normal distribution at first glance, however the curve may be narrower or fatter depending on the Degrees of freedom of the sample size and the distribution of… Read More »Quick Introduction to T distribution #1