Our site contains a lot of Statistical Calculators that can greatly help you with all of your academic needs. Our solvers include Probability Calculators, Hypothesis Test solvers, non-parametric tests, etc. If you have any suggestion about solvers that should be included, please do not hesitate to **contact us**.

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## Z-test for Two Proportions

Instructions: This calculator conducts a Z-test for two population proportions (p1 and p2), Please select the null and alternative hypotheses, type the significance level, the sample sizes, the number of favorable cases (or the sample proportions) ...

## Bar Chart Maker

Instructions: The following graphical tool creates a bar graph based on the data you provide in the boxes below. All you have to do is type your data and also name of the categories. The tool will deliver a bar graph that corresponds to the data ...

## Harmonic Mean Calculator

Instructions: Enter the sample data below and the solver will provide step-by-step calculation of the harmonic mean. Type the sample (comma or space separated) More About The Harmonic Mean Calculator First of all, the harmonic mean is a type of a ...

## Sign Test Calculator

Instructions: This calculator conducts a Sign Test. Please select the null and alternative hypotheses, enter the number of positives (+) and the number of negatives (-), along with the significance level, and the results of the sign test will be ...

## Binomial Probability Calculator

Instructions: Compute binomial probabilities using the form below. Please type the population proportion of success p, and the sample size n, and provide details about the event you want to compute the probability for (notice that the numbers that ...

## Histogram Maker

Instructions: The following graphical tool creates a histogram based on the data you provide in the boxes below. All you have to do is type your data and also the number of bins (typically between 4 and 10). The tool will construct a histogram for ...

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