### Power Calculator Minimum Sample Size – Testing for One Mean

Instructions: This power calculator computes, showing all the steps, the minimum required sample ...

### Descriptive Statistics Calculator of Grouped Data

Instructions: This calculator of descriptive statistics for grouped data calculates the sample, ...

### Percentile Calculator

Instructions: This percentile calculator will calculate a percentile you specify, showing step-by ...

### Effect Size Calculator for the T-Statistic

Instructions: This effect size calculator for the t-statistic allows you to compute the value of ^ ...

### Chebyshev’s Rule Calculator

Instructions: This Chebyshev’s Rule calculator will show you how to use Chebyshev’s ...

### Empirical Rule Calculator

Instructions: This Empirical Rule calculator will show you how to use the Empirical Rule to ...

### Standard Error Calculator

Instructions: This standard error calculator allows you to compute a standard error, showing all ...

### Permutation Coefficient Calculator

Instructions: You can use this permutation coefficient calculator to compute (P_{n,k}), for two ...

### Combinatorial Coefficient Calculator

Instructions: You can use this combinatorial coefficient calculator to compute “n choose k& ...

### Calculator of the Factorial of a Number

Instructions: You can use this factorial calculator to compute the factorial of an integer number ...

### Spearman Correlation Calculator

Instructions: You can use this Spearman Correlation Calculator tool to compute Spearman’s ...

### Pooled Variance Calculator

Instructions: This calculator computes the pooled variance and standard deviation for two given ...

### Effect Size Calculator – Cohen’s d

Instructions: This Statistics calculator will compute the Cohen’s d for you. Please provide ...

### Z-Score Calculator

Instructions: This statistics calculator will compute the Z-score associated with a raw score X. ...

### Linear Regression Calculator

Instructions: Perform a regression analysis, where the regression equation will be found and a ...

### Gamma Coefficient Calculator

Instructions: This calculator computes the value of Gamma, which measures the strength of the ...

### Lambda Coefficient Calculator

Instructions: This calculator computes the value of Lambda, which measures the strength of the ...

### Relative Risk Calculator

Instructions: This calculator computes the Relative Risk for a 2×2 crosstabulation, which ...

### Odds Ratio Calculator

Instructions: This calculator computes the Odds Ratio (OR) for a 2×2 crosstabulation, which ...

### Phi Coefficient Calculator

Instructions: This calculator computes the value of the Phi Coefficient. Please first indicate the ...

### Chi-Square Test for Goodness of Fit

Instructions: This calculator conducts a Chi-Square test for goodness of fit. Please enter the ...

### Chi-Square Test of Independence

Instructions: This calculator conducts a Chi-Square test of independence. Please first indicate ...

### Cramer’s V Calculator

Instructions: This calculator computes the value of Cramer’s V. Please first indicate the ...

### Z-test for Two Proportions

Instructions: This calculator conducts a Z-test for two population proportions (p1 and p2), Please ...

### T-test for two Means – Unknown Population Standard Deviations

This calculator conducts a t-test for two population means ((mu_1) and (mu_2)), with unknown ...

### Z-test for two Means, with Known Population Standard Deviations

Instructions: This calculator conducts a Z-test for two population means ((mu_1) and (mu_2)), with ...

### Sign Test Calculator

Instructions: This calculator conducts a Sign Test. Please select the null and alternative ...

### Kruskal-Wallis Test Calculator

Instructions: This calculator conducts Kruskal-Wallis Test, which is non-parametric alternative to ...

### Wilcoxon Signed-Ranks Calculator

This calculator conducts a Wilcoxon Signed-Ranks for two paired samples. This test applies when ...

### Wilcoxon Rank-Sum Test Calculator

Instructions: This calculator conducts a Wilcoxon Rank Sum test for two independent samples. This ...

### One Way ANOVA Calculator

Instructions: This calculator conducts One-Way ANOVA for a group of samples, with the purpose of ...

### T-test for Paired Samples

Instructions: This calculator conducts a t-test for two paired samples. This test applies when you ...

### Stem-and-Leaf Plot Maker

Instructions:The following graphical tool creates a Stem-and-Leaf on the data you provide in the ...

### Poisson Probability Calculator

Instructions: Compute poisson probabilities using the form below. Please type the population(& ...

### Sample Size Required Calculator – Estimating a Population Proportion

Instructions: This calculator finds the minimum sample size required to estimate a population ...

### Minimum Sample Size Required Calculator – Estimating the Population Mean

Instructions: This calculator finds the minimum sample size required to estimate the population ...

### Linear Regression Calculator

Instructions: Perform a regression analysis, where the regression equation will be found and a ...

### F-test for the equality of two population variances

Instructions: This calculator conducts an F test for two population variances in order to assess ...

### Critical F-Values Calculator

Instructions: Compute critical F values for the F-distribution using the form below. Please type ...

### Exponential Probability Calculator

Instructions: Compute exponential distribution probabilities using the form below. Please type the ...

### Critical Correlation Calculator

Instructions: Enter the sample size (n) and the significance level (alpha) and the solver will ...

### Correlation Coefficient Significance

Instructions: Enter the sample correlation (r), sample size (n) and the significance level ), ...

### Correlation Coefficient Calculator

Instructions: You can use this tool to compute Pearson’s correlation coefficient for two ...

### Confidence Interval Calculator for the Mean (Known Population Standard Deviation)

Instructions: This calculator computes a confidence interval for the population mean (mu), in the ...

### Confidence Interval Calculator for the Mean (Unknown Pop. Standard Deviation)

Instructions: This calculator computes a confidence interval for the population mean (mu), in the ...

### Chi-Square test for One Pop. Variance

Instructions: This calculator conducts a Chi-Square test for one population variance ((sigma^2)). ...

### Critical Chi-Square Values

Instructions: Compute critical Chi-Square values for the Chi-Square distribution using the form ...

### Binomial Probability Calculator

Instructions: Compute binomial probabilities using the form below. Please type the population ...

### Time Series Plot

Instructions: Create a time series plot using the form below. All you have to do is type Y data ...

### Scatter Plot Maker

Instructions: Create a scatter plot using the form below. All you have to do is type your X and Y ...

### Pie Chart Maker

Instructions: The following graphical tool creates a pie chart based on the data you provide in ...

### Line Chart Maker

Instructions: Create a line chart plot using the form below. All you have to do is type Y data ...

### Histogram Maker

Instructions: The following graphical tool creates a histogram based on the data you provide in ...

### Box Plot Maker

Instructions: The following graphical tool creates a box plot on the data you provide in the. ...

### Bar Chart Maker

Instructions: The following graphical tool creates a bar graph based on the data you provide in ...

### Calculation of Descriptive Statistics

Instructions: Enter the sample data below and the solver will provide step-by-step calculation of ...

### Z-test: One Pop. Proportion

Instructions: This calculator conducts a Z-test for one population proportion (p). Please select ...

### T-test for One Population Mean

Instructions: This calculator conducts a t-test for one population mean ((sigma)), with unknown ...

### Z-test for One Population Mean

Instructions: This calculator conducts a Z-test for one population mean ((mu)), with known ...

### T-Distribution Probability Calculator

Instructions: Compute t-distribution probabilities using the form below. Please type the number of ...

### Critical T-values

Instructions: Compute critical t values for the t-distribution using the form below. Please type ...

### Critical Z-Values

Instructions: Compute critical z-values for the normal distribution probabilities using the form ...

### Normal Probability Calculator

Instructions: This online graph maker will compute normal distribution probabilities using the ...