This calculator computes the F-statistic and an approximate p-value for a one-way ANOVA, given the sum of squares between (SSB), sum of squares within (SSW), and their respective degrees of freedom. Enter SSB, dfBetween, SSW, and dfWithin to obtain the F-statistic and p-value. Results are for educational and preliminary use only. ANOVA F‑Value Calculator ANOVA […]
Read MoreOne‑Way ANOVA Calculator Enter the sample data for each group (separate values with commas). Use the buttons below to add or remove groups. Group 1: 5, 6, 7, 8 Group 2: 8, 9, 10, 7 Group 3: 4, 5, 6, 5 Add Group Remove Group Calculate ANOVA One‑Way ANOVA Calculator – Educational Guide One‑Way ANOVA […]
Read MoreUse this calculator to determine the confidence interval for a Binomial proportion ( p ). Input your number of trials ( n ), number of successes ( x ), and desired confidence level to compute the confidence interval. Binomial Probability Confidence Interval Calculator Binomial Confidence Interval Calculator Compute the confidence interval for the probability of […]
Read MoreBeta Distribution CDF Calculator Beta Distribution CDF Calculator Calculate the Beta Distribution CDF: $$ F(x; \alpha, \beta) = I_x(\alpha,\beta) = \frac{B_x(\alpha,\beta)}{B(\alpha,\beta)} $$ * Enter the shape parameters \( \alpha \) and \( \beta \) (both > 0) and a value \( x \) (0 ≤ \( x \) ≤ 1). Step 1: Enter Parameters Alpha […]
Read MoreBinomial Variance Calculator Binomial Variance Calculator Calculate the variance of a binomial distribution: $$ \text{Var}(X)=np(1-p). $$ * Enter the number of trials \( n \) and the probability of success \( p \) (0 ≤ \( p \) ≤ 1). Step 1: Enter Parameters Number of Trials, \( n \): e.g., 100 Probability of Success, […]
Read MorePost-hoc Statistical Power Calculator for Hierarchical Multiple Regression Post-hoc Statistical Power Calculator for Hierarchical Multiple Regression Total Sample Size (N): R² for Full Model: R² for Reduced Model: Significance Level (α): Calculate Power Reset
Read MorePoisson Distribution CDF Calculator Poisson Distribution CDF Calculator $$ P(X \leq k) = e^{-\lambda} \sum_{i=0}^{k} \frac{\lambda^{i}}{i!} $$ Lambda (λ): Number of Events (k): Calculate CDF Reset
Read MoreHierarchical Regression F‑Value Calculator Hierarchical Regression F‑Value Calculator Calculate the incremental F‑statistic for hierarchical regression using: $$ F=\frac{(R^2_{\text{full}}-R^2_{\text{base}})/(k_{\text{full}}-k_{\text{base}})}{(1-R^2_{\text{full}})/(n-k_{\text{full}}-1)}. $$ * Enter the sample size \( n \), baseline model \( R^2 \) and number of predictors \( k_{\text{base}} \), and full model \( R^2 \) and number of predictors \( k_{\text{full}} \). Note: \( n […]
Read MoreEnter the degrees of freedom (df) and significance level (alpha) to find the critical chi-square value. This is the chi-square quantile where P(X ≤ χ²) = 1 – α. Use this value for hypothesis testing in chi-square analyses. This tool uses a numerical approximation and should be used for educational purposes only. Critical Chi-Square Value […]
Read MoreCumulative Binomial Probability Calculator Cumulative Binomial Probability Calculator Use this calculator to determine the cumulative probability of obtaining up to a certain number of successes in a fixed number of trials. Input the number of trials, probability of success, and number of successes to compute the cumulative binomial probability. Number of Trials (( n )): […]
Read More