Lilliefors Test Table
The Lilliefors Test Table provides critical D values for normality testing when the population mean and standard deviation are estimated from the sample.
Hartley's Fmax Table
The Hartley Fmax Table provides critical values for testing homogeneity of variance across groups using the maximum-to-minimum variance ratio.
Cohen's Kappa Table
The Cohen's Kappa Table provides interpretation guidelines, critical values, formulas, and examples for measuring agreement between two raters beyond chance.
Noncentral t Distribution Table
The Noncentral t Distribution Table provides probabilities and critical values based on degrees of freedom (ν) and the noncentrality parameter (λ).
Geometric Distribution Table
The Geometric Distribution Table provides probabilities for the number of trials needed to achieve the first success in a sequence of independent Bernoulli trials.
Exponential Distribution Table
The Exponential Distribution Table provides cumulative probabilities and related values for modeling waiting times and the time between events in a Poisson process.
Control Chart Constants Table
The Control Chart Constants Table provides A2, D3, D4, d2, and related constants used to calculate control limits for X-bar, R, and other statistical process control charts.
Negative Binomial Distribution Table
The Negative Binomial Distribution Table provides probabilities for the number of trials or failures required to achieve a specified number of successes in repeated independent trials.
Acceptance Sampling Table
The Acceptance Sampling Table provides sample sizes, acceptance numbers, and related values used to determine whether a batch or lot meets specified quality requirements.
Hypergeometric Distribution Table
The Hypergeometric Distribution Table provides probabilities for sampling successes from a finite population without replacement.
Kendall's Tau Critical Value Table
The Kendall's Tau Critical Value Table provides critical values for testing the significance of the association between ranked variables using Kendall's tau.
Durbin-Watson Table
The Durbin-Watson Table provides critical values used to test for autocorrelation in the residuals of regression models.
Fisher's Z Transformation Table
The Fisher's Z Transformation Table provides values for converting correlation coefficients into Fisher's z scores for statistical analysis and inference.
Standard Normal Table: Right Tail
The Standard Normal Table for the right tail provides probabilities and critical values for the area to the right of a given z-score in the standard normal distribution.
Spearman Footrule Table
The Spearman Footrule Table provides critical values for evaluating rank differences using the Spearman footrule statistic.
Sign Test Table
The Sign Test Table provides critical values for the Sign Test, helping determine whether paired observations differ significantly without assuming a normal distribution.
Kolmogorov-Smirnov (K-S) Table
The Kolmogorov-Smirnov (K-S) Table provides critical values for the K-S test, helping assess whether a sample follows a specified probability distribution.
Runs Test Table
The Runs Test Table provides critical values for the Runs Test, helping evaluate whether the order of observations in a sequence is random.
Duncan's Multiple Range Table
Duncan's Multiple Range Table provides critical values for Duncan's Multiple Range Test, helping identify which group means differ significantly after ANOVA.
Kruskal-Wallis Critical Value Table
The Kruskal-Wallis Critical Value Table provides cutoff values for the Kruskal-Wallis test, helping determine whether differences among three or more independent groups are statistically significant.
Friedman Test Table
The Friedman Test Table provides critical values for the Friedman test, helping compare three or more related groups when the assumptions of repeated-measures ANOVA are not met.
Newman-Keuls Table
The Newman-Keuls Table provides critical values for the Student-Newman-Keuls (SNK) test, helping identify significant differences between group means following ANOVA.
Cochran's Q Table
Cochran's Q Table provides critical values for Cochran's Q test, helping researchers analyze differences between three or more related proportions across various significance levels.
Levene's Test Table
Levene's Test Table provides critical values for Levene's test, helping researchers assess the equality of variances across multiple groups before performing statistical analyses.
Anderson-Darling Table
Anderson-Darling Table provides critical values for the Anderson-Darling goodness-of-fit test, helping researchers determine whether a dataset follows a specified probability distribution.
Grubbs Test Table
Grubbs Test Table provides critical values for Grubbs' outlier test, helping researchers identify a single outlier in normally distributed datasets at various significance levels.
McNemar Test Table
McNemar Test Table provides critical values for McNemar's test, allowing researchers to evaluate changes in paired categorical data and determine statistical significance.
Dixon's Q Table
Dixon's Q Table provides critical values for Dixon's Q test, helping researchers identify potential outliers in small datasets while maintaining a specified significance level.
Scheffé Test Table
Scheffé Test Table provides critical values for Scheffé's multiple comparison procedure, allowing researchers to identify significant differences among group means after an ANOVA while controlling the family-wise error rate.
Random Digit Table
Random Digit Table provides randomly generated digits for use in probability, sampling, simulations, experimental design, and statistical research where unbiased random selection is required.
Log-Rank Test Table
Log-Rank Test Table provides critical values used to compare survival distributions between two or more groups, supporting hypothesis testing in survival and reliability analysis.
Weibull Reliability Table
Weibull Reliability Table provides reliability and cumulative failure probabilities for Weibull distributions, supporting life testing, reliability engineering, and failure time analysis.
Bonferroni Adjusted Critical Value Table
Bonferroni Adjusted Critical Value Table provides adjusted significance levels for multiple hypothesis testing, helping control the family-wise error rate by applying the Bonferroni correction across different numbers of comparisons.
Spearman Correlation Table
Spearman Correlation Table provides critical values for Spearman’s rank correlation coefficient (ρ), helping determine the statistical significance of relationships between ranked variables across different sample sizes and significance levels.
Tukey's Q Table
Tukey's Q Table provides critical q values for performing Tukey’s Honestly Significant Difference (HSD) test, helping determine whether differences between group means are statistically significant across various significance levels and degrees of freedom.
Wilcoxon Signed-Rank Table
Wilcoxon Signed-Rank Table provides critical W values for determining the statistical significance of paired-sample differences in the Wilcoxon signed-rank test across different sample sizes and significance levels.
Pearson Correlation Table
Pearson Correlation Table provides critical r values for determining the statistical significance of Pearson correlation coefficients across different degrees of freedom and significance levels.
Mann-Whitney U Table
Mann-Whitney U Table provides critical values for comparing two independent samples using the non-parametric Mann-Whitney U test across different sample sizes and significance levels.
Poisson Distribution Table
Poisson Distribution Table provides probability values for discrete rare events using λ (lambda) and x values for probability and cumulative calculations.
Dunnett’s Table
Dunnett’s Table provides critical values to compare multiple treatments with a control after ANOVA using k, df, and α levels (0.10, 0.05, 0.01).
Binomial Distribution Table
Complete binomial table showing exact P(X = k) and cumulative P(X ≤ k) for n = 1–20 and p = 0.05–0.95. Includes calculator, PDF download, and step-by-step guide.
Z-Table (Standard Normal)
The complete standard normal distribution table (Z-table). Look up cumulative probabilities for any Z-score from -3.99 to +3.99. Includes left-tail and right-tail variants.
t-Distribution Table
Critical values for the Student's t-distribution. Look up t-values for any combination of degrees of freedom and significance level (α = 0.10, 0.05, 0.01, 0.001).
View TableChi-Square Table
Chi-square critical values for goodness-of-fit tests, independence tests, and confidence intervals for variance. Covers degrees of freedom 1–100.
F Table
F distribution critical values for ANOVA and variance ratio tests. Includes alpha levels 0.10, 0.05, and 0.01, PDF downloads, and an interactive calculator.
Kruskal-Wallis Table
Kruskal-Wallis critical values for H statistics, degrees of freedom, and significance levels. Includes α = 0.10, 0.05, and 0.01 with guidance for making rejection decisions.
Fisher's Exact Test Table
Understand 2×2 contingency tables, observed cell counts, and exact p-values calculated from the hypergeometric distribution. Explains why Fisher's exact test does not use a universal critical-value table.
Effect Size Table
Cohen's d effect size thresholds and interpretation, including small, medium, and large effects. Includes the pooled standard deviation formula and six worked examples.
Shapiro-Wilk Critical Value Table
Shapiro-Wilk W critical values by sample size and significance level. Learn how to compare your calculated W with the critical value and interpret evidence against normality.