How To Calculate The Probability Of T Score And N

Calculating the probability of a t-score with a given sample size (n) is crucial in statistics to determine the significance of your results. This calculator simplifies that process, helping you make informed decisions.

1. Enter your t-score and sample size (n) in the respective fields.
2. Click ‘Calculate’.
3. View your results below the calculator.

The formula used here is:

P(T < t | n) = 1 - (1 - P(T < -t | n)) / 2

Where:

• P(T < t | n) is the probability of a t-score being less than the given t-score with the given sample size.
• P(T < -t | n) is the probability of a t-score being less than the negative of the given t-score with the given sample size.

Comparison of t-score probabilities with varying sample sizes

T Score	N = 10	N = 30	N = 50

• Always ensure your sample size (n) is large enough for accurate results.
• Consider using a significance level (alpha) of 0.05 for most tests.

What is a t-score?

A t-score is a type of standardized score that indicates how many standard deviations an element is from the mean.

Learn more about t-scores

Understand sample size