providing accurate calculations for 18+ years!

Below you will find descriptions and links to 36 different statistics calculators that are related to the free significance of the difference between two slopes calculator. The related calculators have been organized into categories in order to make your life a bit easier.

Probability (p-Value) Calculators

- Binomial Probability Calculator
- Complementary Probability Calculator
- Conditional Probability Calculator
- Cumulative Area Under the Standard Normal Curve Calculator
- Cumulative Binomial Probability Calculator
- Cumulative Poisson Probability Calculator
- F-Value and p-Value Calculator for Multiple Regression
- Fisher's Exact Test Calculator for a 2x2 Contingency Table
- Fisher's Exact Test Calculator for a 2x3 Contingency Table
- Fisher's Exact Test Calculator for a 3X3 Contingency Table
- Interval Probability Calculator for the Uniform Distribution
- Joint Probability Calculator
- One-Tailed Area Under the Standard Normal Distribution Calculator
- p-Value Calculator for a Chi-Square Test
- p-Value Calculator for a Student t-Test
- p-Value Calculator for an Analysis of Variance (ANOVA) Study
- p-Value Calculator for an F-Test
- p-Value Calculator for Correlation Coefficients
- Poisson Probability Calculator
- Significance of the Difference between Two Correlations Calculator
- Sobel Test Calculator for the Significance of Mediation
- Two-Tailed Area Under the Standard Normal Distribution Calculator
- Union Probability Calculator

Regression Calculators

- A-priori Sample Size Calculator for Multiple Regression
- Adjusted R-square Calculator (Population R-square)
- Beta (Type II Error Rate) Calculator for Multiple Regression
- Confidence Interval Calculator for a Predicted Value of a Regression Equation
- Critical F-value Calculator
- Effect Size Calculator for Multiple Regression
- f-square Effect Size Confidence Interval Calculator
- F-Value and p-Value Calculator for Multiple Regression
- Post-hoc Statistical Power Calculator for Multiple Regression
- R-square Calculator (from an f-square Effect Size)
- R-square Confidence Interval Calculator
- Regression Coefficient Confidence Interval Calculator
- Regression Intercept Confidence Interval Calculator

Related Resources