Definition: This calculator determines the critical t-values for a Student's t-distribution based on the degrees of freedom and probability level.
Purpose: Assists in hypothesis testing by providing two-tailed and right-tailed t-values to compare against a t-statistic.
The calculator uses the following steps:
Step 1: Input Parameters
Step 2: Calculate T-Values
The t-values are computed using an approximation algorithm based on the provided JavaScript functions.
Steps:
Calculating the t-value is crucial for:
Example 1: Degrees of Freedom = 10, Probability Level = 0.05
Q: What is degrees of freedom?
A: It’s the number of independent values, typically sample size minus 1.
Q: Why use two-tailed and right-tailed values?
A: Two-tailed tests check both directions of the distribution, while right-tailed tests focus on positive deviations.
Q: What if I enter an invalid probability?
A: An error will be displayed if the probability is not between 0.00001 and 0.99999.