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

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

### 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 ...

### 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& ...

### 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 ...

### 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 ...

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

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

### 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 ... 