Enter either the p-value (represented by the blue area on the graph) or the test statistic (the coordinate along the horizontal axis) below to have the other value computed. Student's t-distribution Other distributions: Normal • Chi-square • F p-value: t-value: d.f.: two tails...
在线计算T-test P-Value p-Value Calculator for the Student t-Test http://www.danielsoper.com/statcalc/calc08.aspx T Distribution Calculator http://www.stat.tamu.edu/~west/applets/tdemo.html
Note:The t-distribution calculator only reports cumulative probabilities (e.g., the probability that a t score is less than or equal to a specified value.) Sample Problems Calculator|Frequently-Asked Questions The Acme Chain Company claims that their chains have an average breaking strength of 20...
P Value from T Score CalculatorThis should be self-explanatory, but just in case it's not: your t-score goes in the T Score box, you stick your degrees of freedom in the DF box (N - 1 for single sample and dependent pairs, (N1 - 1) + (N2 - 1) for independent samples), ...
Example of a p-valueThe two-tailed t-test of the difference in test scores generates a t-value of 12.79. This means that the difference in group means is 12.79 standard deviations away from the mean of the distribution of the null hypothesis. The degrees of freedom is 38 (n–1 for eac...
t-Distribution:A t-distribution is defined on n-1 degree of freedom. The shape of the t-distribution will be normal if and only if the sample size is enough large. t-distribution will be used when population standard deviation is not known....
Calculate P-value. It is the probability of detecting a sample statistic to the level of the test statistic. To derive the probability value, we can use a ‘t Distribution Calculator.’ Derive the null hypothesis. We discredit the null hypothesis when the P-value is less than the significan...
Binomial distribution calculatorThe binomial distribution calculator and binomial score calculator uses the binomial distribution.The binomial distribution is a discrete distribution, that calculates the probability of getting a specific number of successes in an experiment with n trials and p (probability of...
Distribution:NormalTChi-SquareF Tails:Two (H₁: Not equal)Left (H₁: Less than)Right (H₁: Greater than) Significance level (α): Z Score: Mean (μ): Standard deviation (σ): More options ▼ CalculateClear P value calculator ...
Drawing Conclusions Using the P-Value If the calculated t-value is larger than the critical value, then you can reject the null hypothesis. If it is less than the critical value, then you fail to reject the null hypothesis. The t-distribution is related to the normal distribution; indeed,...